Sample records for na na delaware

  1. Report from NA49

    E-Print Network [OSTI]

    Katarzyna Grebieszkow; for the NA49 Collaboration

    2011-12-04T23:59:59.000Z

    The signatures of the onset of deconfinement, found by the NA49 experiment at low SPS energies, are confronted with new results from the Beam Energy Scan (BES) program at BNL RHIC and CERN LHC results. Additionally, new NA49 results on chemical (particle ratio) fluctuations, azimuthal angle fluctuations, intermittency of di-pions, etc. are presented.

  2. Results from NA49

    E-Print Network [OSTI]

    C. Hoehne

    2005-10-17T23:59:59.000Z

    An overview of results from the CERN experiment NA49 is presented with emphasis on most recent measurements. NA49 has systematically studied the dependence of hadron production on energy and system size or centrality. At top-SPS energy the detailed investigation of hadron production, now also extending to elliptic flow of Lambda-baryons and to identified particle yields at high p_t, shows that the created matter behaves in a similar manner as at RHIC energies. In the lower SPS energy range a distinct structure is observed in the energy dependence of the rate of strangeness production and in the slopes of p_t-spectra suggesting the onset of the creation of a deconfined phase of matter.

  3. Challenges for Na-ion Negative Electrodes

    E-Print Network [OSTI]

    Chevrier, V. L.

    Na-ion batteries have been proposed as candidates for replacing Li-ion batteries. In this paper we examine the viability of Na-ion negative electrode materials based on Na alloys or hard carbons in terms of volumetric ...

  4. Aithisg Bhliadhnail Coilltearachd na h-Alba

    E-Print Network [OSTI]

    ' toirt thugaibh Lèirmheas Bliadhnail Ùghdarras Coilltearachd na h-Alba 2007-08. B' e seo a' chiad bliadhna. Tha mise a' meas an Lèirmheas seo mar `iris dhealbhach' an cois na h-Aithisg Bhliadhnail agus Ùghdarras na Coilltearachd a bhith dèanamh cinnteach gu lean an fhàs seo agus gum bi e na bhuannachd do

  5. Sodium iron hexacyanoferrate with high Na content as a Na-rich cathode material for Na-ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Guo, Ya [Brookhaven National Lab. (BNL), Upton, NY (United States); Yu, Xiqian [Brookhaven National Lab. (BNL), Upton, NY (United States); You, Ya [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Chemistry; Yin, Yaxia [Brookhaven National Lab. (BNL), Upton, NY (United States); Nam, Kyung -Wan [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-01-01T23:59:59.000Z

    Owing to the worldwide abundance and low-cost of Na, room-temperature Na-ion batteries are emerging as attractive energy storage systems for large-scale grids. Increasing the Na content in cathode material is one of the effective ways to achieve high energy density. Prussian blue and its analogues (PBAs) are promising Na-rich cathode materials since they can theoretically store two Na ions per formula. However, increasing the Na content in PBAs cathode materials is a big challenge in the current. Here we show that sodium iron hexacyanoferrate with high Na content could be obtained by simply controlling the reducing agent and reaction atmosphere during synthesis. The Na content can reach as high as 1.63 per formula, which is the highest value for sodium iron hexacyanoferrate. This Na-rich sodium iron hexacyanoferrate demonstrates a high specific capacity of 150 mA h g-1 and remarkable cycling performance with 90% capacity retention after 200 cycles. Furthermore, the Na intercalation/de-intercalation mechanism is systematically studied by in situ Raman, X-ray diffraction and X-ray absorption spectroscopy analysis for the first time. The Na-rich sodium iron hexacyanoferrate could function as a plenteous Na reservoir and has great potential as a cathode material toward practical Na-ion batteries.

  6. Sodium iron hexacyanoferrate with high Na content as a Na-rich cathode material for Na-ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Guo, Ya; Yu, Xiqian; You, Ya; Yin, Yaxia; Nam, Kyung -Wan

    2015-01-01T23:59:59.000Z

    Owing to the worldwide abundance and low-cost of Na, room-temperature Na-ion batteries are emerging as attractive energy storage systems for large-scale grids. Increasing the Na content in cathode material is one of the effective ways to achieve high energy density. Prussian blue and its analogues (PBAs) are promising Na-rich cathode materials since they can theoretically store two Na ions per formula. However, increasing the Na content in PBAs cathode materials is a big challenge in the current. Here we show that sodium iron hexacyanoferrate with high Na content could be obtained by simply controlling the reducing agent and reaction atmospheremore »during synthesis. The Na content can reach as high as 1.63 per formula, which is the highest value for sodium iron hexacyanoferrate. This Na-rich sodium iron hexacyanoferrate demonstrates a high specific capacity of 150 mA h g-1 and remarkable cycling performance with 90% capacity retention after 200 cycles. Furthermore, the Na intercalation/de-intercalation mechanism is systematically studied by in situ Raman, X-ray diffraction and X-ray absorption spectroscopy analysis for the first time. The Na-rich sodium iron hexacyanoferrate could function as a plenteous Na reservoir and has great potential as a cathode material toward practical Na-ion batteries.« less

  7. NA61/SHINE ion program

    E-Print Network [OSTI]

    Maja Mackowiak for the NA61 Collaboration

    2010-09-06T23:59:59.000Z

    The Super Proton Synchrotron (SPS) at CERN covers one of the most interesting regions of the phase diagram (T - \\mu_{B}) of strongly interacting matter. The study of central Pb+Pb collisions by NA49 indicate that the threshold for deconfinement is reached already at the low SPS energies. Theoretical considerations predict a critical point of strongly interacting matter at energies accessible at the SPS. The NA61/SHINE experiment, a successor of the NA49 project, will study hadron production in p+p, p+A, h+A, and A+A reactions at various energies. The broad physics program includes the investigation of the properties of strongly interacting matter, as well as precision measurements of hadron spectra for the T2K neutrino experiment and for the Pierre Auger Observatory and KASCADE cosmic-ray projects. The main physics goals of the NA61/SHINE ion program are to study the properties of the onset of deconfinement at low SPS energies and to find signatures of the critical point of strongly interacting matter. To achieve these goals a broad range in the (T - \\mu_{B}) phase diagram will be covered by performing an energy (10A-158A GeV/c) and system size (p+p, B+C, Ar+Ca, Xe+La) scan. The first data for this 2-D scan were taken in 2009, i.e. p+p interactions at 20, 30, 40, 80, 158 GeV/c beam energy. This contribution will summarize physics arguments for the NA61/SHINE ion program, show the detector performance and present the current status of the experiment and plans for the next years.

  8. NA1 Sept | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    at NNSA Blog Home content Social Media NA1 Sept NA1 Sept .@FrankKlotzNNSA gives a shout out to programs contributing to NNSA's enduring mission http:1.usa.gov1mUBgrn...

  9. NA1 | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Working at NNSA Blog Home content Social Media NA1 NA1 Administrator's message to NNSA workforce on another impressive achievement-full copy here: http:1.usa.gov1teEgRy...

  10. Workforce Statistics - NA SH | National Nuclear Security Administratio...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics Workforce Statistics - NA SH Workforce Statistics - NA SH NA SH FY14 Year End...

  11. NA SD 452.2

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTubahq.na.govSecurityMaintaining theSan Jose-San| National NuclearMonthlyN

  12. Recent results from NA61/SHINE

    E-Print Network [OSTI]

    Marek Gazdzicki; for the NA61/SHINE Collaboration

    2014-12-13T23:59:59.000Z

    This paper briefly presents the NA61/SHINE facility at the CERN SPS and its measurements motivated by physics of strong interactions, neutrinos and cosmic rays.

  13. Laser-induced ionization of Na vapor

    SciTech Connect (OSTI)

    Wu, R.C.Y.; Judge, D.L.; Roussel, F.; Carre, B.; Breger, P.; Spiess, G.

    1982-01-01T23:59:59.000Z

    The production of Na/sub 2//sup +/ ions by off-resonant laser excitation in the 5800-6200A region mainly results from two-photon absorption by the Na/sub 2/ molecule to highly excited gerade states followed by (a) direct ionization by absorbing a third photon or (b) coupling to the molecular Na/sub 2/ D/sup 1/PI..mu.. Rydberg state which is subsequently ionized by absorbing a third photon. This mechanism, i.e., a two-photon resonance three photon ionization process, explains a recent experimental observation of Roussel et al. It is suggested that the very same mechanism is also responsible for a similar observation reported by Polak-Dingels et al in their work using two crossed Na beams. In the latter two studies the laser-induced associative ionization processes were reported to be responsible for producing the Na/sub 2//sup +/ ion. From the ratio of molecular to atomic concentration in the crossed beam experiment of Polak-Dingels et al we estimate that the cross section for producing Na/sub 2//sup +/ through laser-induced associative ionization is at least four orders of magnitude smaller than ionization through the two-photon resonance three photon ionization process in Na/sub 2/ molecules.

  14. NA GC - Office of General Counsel | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Blog Home About Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA GC - Office of General Counsel NA GC - Office of General Counsel...

  15. NA 1 - Immediate Office of the Administrator | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 1 - Immediate Office of the Administrator NA 1 - Immediate Office of the...

  16. NA MB - Associate Administrator for Management & Budget | National...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA MB - Associate Administrator for Management ... NA MB - Associate Administrator...

  17. NA 30 - Deputy Administrator for Naval Reactors | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 30 - Deputy Administrator for Naval Reactors NA 30 - Deputy Administrator for...

  18. NA APM - Associate Administrator for Acquisition & Project Management...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA APM - Associate Administrator for Acquisition ... NA APM - Associate...

  19. NA 40 - Associate Administrator for Emergency Operations | National...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 40 - Associate Administrator for Emergency Operations NA 40 - Associate...

  20. NA 15 - Assistant Deputy Administrator for Secure Transportation...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 15 - Assistant Deputy Administrator for ... NA 15 - Assistant Deputy...

  1. NA 80 - Associate Administrator for Counterterrorism andCounterprolif...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 80 - Associate Administrator for Counterterrorism ... NA 80 - Associate...

  2. NA 50 - Associate Administrator for Safety, Infrastructure and...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 50 - Associate Administrator for Safety, ... NA 50 - Associate Administrator...

  3. NA 10 - Deputy Administrator for Defense Programs | National...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 10 - Deputy Administrator for Defense Programs NA 10 - Deputy Administrator for...

  4. NA 70 - Associate Administrator for Defense Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Us Our Operations Management and Budget Office of Civil Rights Workforce Statistics NA 70 - Associate Administrator for Defense ... NA 70 - Associate Administrator...

  5. analiticheskij kompleks na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  6. achados na ressonancia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  7. aktinidnykh matrits na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  8. aquaticas na eficiencia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  9. aplicacao na padronizacao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  10. ambientais defendidos na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  11. aprendizagem organizacional na: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  12. atomizacao na industria: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  13. aplicacao na prevencao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  14. acumulam na doenca: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  15. alongamento mesenterial na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  16. arteriais na cirurgia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  17. acometido na vertigem: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  18. abordagem multiescala na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  19. antiga terapia na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  20. apendicite aguda na: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  1. amazonicus characidae na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  2. aktivnykh dobavok na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  3. aplicacao na producao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  4. aparelhos na radioterapia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  5. aiton na serra: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  6. aditivos na injetabilidade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  7. argila na morfologia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  8. a2780 na cisplatinu: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  9. atmosferica na regiao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  10. atividade pesqueira na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  11. adjuvante na papilomatose: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  12. agem na demanda: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  13. aegypti na ilha: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  14. anemia materna na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  15. azotada na produtividade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  16. asma aguda na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  17. anseniformes ocorrido na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  18. autogeno na cirurgia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  19. avarii na chaehs: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  20. alcalino neoproterozoico na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  1. adultos na coorte: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  2. argilas pilarizadas na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  3. antioxidantes na resposta: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  4. alteracoes na sintese: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  5. aborto ilegal na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  6. artificiais na bacia: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  7. acidente na usina: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  8. ambulatoriais na cidade: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  9. atheriniformes atherinopsidae na: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  10. adquirida na comunidade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  11. antioxidantes na asma: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  12. antimicrobiana na cirurgia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  13. aleitamento materno na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  14. avarii na aehs: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  15. aplicacao na calibracao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  16. adsorbirovannogo na tverdykh: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  17. armazenamento na disponibilidade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  18. animais silvestres na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  19. alternativa na quebra: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  20. alternativos utilizados na: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  1. acidentes na industria: Topics by E-print Network

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    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  2. aliado na busca: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  3. atmosfera controlada na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  4. alegorias na pintura: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  5. alteracoes na secrecao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  6. auxilio na atividade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  7. atmosferas modificadas na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  8. aquecimento na vida: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  9. aplicacao na dosimetria: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  10. aplicado na automacao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  11. aktivnosti na fiziologicheskie: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  12. amostragem na lavoura: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  13. alada na distrofia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  14. achados na artroscopia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  15. anemia falciforme na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  16. avaliadas na semeadura: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  17. anodo na oxidacao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  18. aprendizado na fundoplicatura: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  19. achados na tomografia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  20. Sidorenkite (Na3MnPO4CO3): A New Intercalation Cathode Material for Na-Ion Batteries

    E-Print Network [OSTI]

    Ceder, Gerbrand

    - 180 Wh/kg) than other rechargeable batteries, such as lead-acid and Ni-Cd batteries. Na-ion batteriesSidorenkite (Na3MnPO4CO3): A New Intercalation Cathode Material for Na-Ion Batteries Hailong Chen, Cambridge, United Kingdom *S Supporting Information ABSTRACT: Na-ion batteries represent an effective energy

  1. Delaware Solid Waste Authority (Delaware)

    Broader source: Energy.gov [DOE]

    The Delaware Solid Waste Authority (DSWA) runs three landfills, all of which recover methane and generate electricity with a total capacity of 24 MWs. The DSWA Solid Waste Plan includes goals,...

  2. Delaware Land Protection Act (Delaware)

    Broader source: Energy.gov [DOE]

    The Land Protection Act requires the Department of Natural Resources and Environmental Control to work with the Delaware Open Space Council to develop standards and criteria for determining the...

  3. U Gorskome kotaru kao na Strawberry Hillu

    E-Print Network [OSTI]

    Boley, Colleen; Stakun, Rebecca; Novak, Charles; Pirnat-Greenberg, Marta

    2012-07-01T23:59:59.000Z

    je prvi put posjetio Hrvatsku. “Bilo je kao da sam se vratio na Hill. U Hrvatskoj sam našao istu to- plu, prijateljsku atmosferu i ista prezi- mena kojih se sje?am iz djetinjstva. Kad odem u Hrvatsku, vidim mnoge sli?no- sti sa svojim starim... toliki no- vac”, sje?a se Don. Nedugo nakon toga dobio je dozvo- lu da doveze Danijelu u SAD da godinu dana boravi kod njegove obitelji. Poletio je iz Kansas Cityja u petak uve?er, sti- gao u Zagreb u subotu ujutro i vratio se u Kansas City...

  4. master's degree NaNotechNology

    E-Print Network [OSTI]

    Twente, Universiteit

    master's degree NaNotechNology When choosing a Master's programme, it is wise to look one step topical, incorporating the latest developments in applied physics, nanotechnology, chemical engineering projects will be carried out at the MESA+ institute for nanotechnology, or the MIRA institute

  5. Laser trapping of {sup 21}Na atoms

    SciTech Connect (OSTI)

    Lu, Zheng-Tian

    1994-09-01T23:59:59.000Z

    This thesis describes an experiment in which about four thousand radioactive {sup 21}Na (t{sub l/2} = 22 sec) atoms were trapped in a magneto-optical trap with laser beams. Trapped {sup 21}Na atoms can be used as a beta source in a precision measurement of the beta-asymmetry parameter of the decay of {sup 21}Na {yields} {sup 21}Ne + {Beta}{sup +} + v{sub e}, which is a promising way to search for an anomalous right-handed current coupling in charged weak interactions. Although the number o trapped atoms that we have achieved is still about two orders of magnitude lower than what is needed to conduct a measurement of the beta-asymmetry parameter at 1% of precision level, the result of this experiment proved the feasibility of trapping short-lived radioactive atoms. In this experiment, {sup 21}Na atoms were produced by bombarding {sup 24}Mg with protons of 25 MeV at the 88 in. Cyclotron of Lawrence Berkeley Laboratory. A few recently developed techniques of laser manipulation of neutral atoms were applied in this experiment. The {sup 21}Na atoms emerging from a heated oven were first transversely cooled. As a result, the on-axis atomic beam intensity was increased by a factor of 16. The atoms in the beam were then slowed down from thermal speed by applying Zeeman-tuned slowing technique, and subsequently loaded into a magneto-optical trap at the end of the slowing path. The last two chapters of this thesis present two studies on the magneto-optical trap of sodium atoms. In particular, the mechanisms of magneto-optical traps at various laser frequencies and the collisional loss mechanisms of these traps were examined.

  6. Characterization of NOx Species in Dehydrated and Hydrated Na...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NOx Species in Dehydrated and Hydrated Na- and Ba-Y, FAU Zeolites Formed in NO Adsorption. Characterization of NOx Species in Dehydrated and Hydrated Na- and Ba-Y, FAU Zeolites...

  7. Topical Review Voltage Dependence of the Na/K Pump

    E-Print Network [OSTI]

    Gadsby, David

    Topical Review Voltage Dependence of the Na/K Pump R.F. Rakowski1 , D.C. Gadsby2 , P. De Weer3 1, Philadelphia, PA 19104, USA Received: 2 August 1996/Revised: 13 September 1996 Introduction Whether Na/K pump & Rakowski, 1988). While it follows from first principles that the rate of net forward Na/K pumping must

  8. Influence of Salt Purity on Na+ and Palmitic Acid Interactions

    E-Print Network [OSTI]

    Influence of Salt Purity on Na+ and Palmitic Acid Interactions Zishuai Huang, Wei Hua, Dominique of salt purity on the interactions between Na+ ions and the carboxylate (COO- ) head group of palmitic frequency generation (VSFG) spectroscopy. Ultrapure (UP) and ACS grade NaCl salts are used for aqueous

  9. Brownfield Assistance Program (Delaware)

    Broader source: Energy.gov [DOE]

    The Brownfield Assistance Program, administrated by the Delaware Economic Development Office (DEDO) and funded from Delaware Strategic Fund, provides matching grants to owners and developers to...

  10. Comparative studies of etching mechanisms of CR-39 in NaOH/H2O and NaOH/ethanol

    E-Print Network [OSTI]

    Yu, K.N.

    Comparative studies of etching mechanisms of CR-39 in NaOH/H2O and NaOH/ethanol K.C.C. Tse, D Avenue, Kowloon Tong, Hong Kong Available online 13 May 2007 Abstract The bulk etch rate for CR-39 in NaOH/ethanol accumulates on the surface of CR-39 detector during etching in NaOH/ethanol, which is absent during etching

  11. Penning and associative ionization in crossed-beam Na/Na collisions assisted by strong resonant laser fields

    SciTech Connect (OSTI)

    Weiner, J.; Polak-Dingels, P.

    1981-01-01T23:59:59.000Z

    We observe the production of Na/sub 2//sup +/ and Na/sup +/ arising from single collisions between crossed beams of sodium atoms when a laser field is tuned near the Na(3p /sup 2/P/sub 3/2/) and Na(3p /sup 2/P/sub 1/2/) transitions. Measurements of ion intensity vs laser intensity show that at moderately high power true laser-induced processes dominate over purely collisional effects. Relative intensity of mass-selected ions produced at either member of the Na resonance doublet shows conclusively that Na/sup +/ does not arise simply from photodissociation of Na/sub 2//sup +/ but must result from a direct, laser-induced collisional ionization.

  12. Supporting Information Ionic Binding of Na+

    E-Print Network [OSTI]

    1350 1400 1450 1500 1550 0.00 0.05 0.10 0.15 0.20 D31 - PA - pH 1.0 (PPP) D31 - PA - pH 13.3 (PPP) Frequency (cm -1 ) SFGIntensity(a.u.) Figure S1. ppp VSFG spectra of D31-PA monolayers on water with p.08 0.12 D31 - PA - 0.6 M NaCl (PPP) 0.00 0.04 0.08 0.12 D31 - PA - 0.6 M KCl (PPP) 1300 1350 1400 1450

  13. na-00 | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , (Energy97 UpperJointmoveLINQ PIA,na-00 | National

  14. Results from the NA62 2014 Commissioning Run

    E-Print Network [OSTI]

    Dario Soldi

    2015-05-12T23:59:59.000Z

    The main purpose of the NA62 experiment is to measure the branching ratio of the (ultra) rare decay $K+ \\rightarrow {\\pi}+{\

  15. Angular distributions of photoelectrons from free Na clusters

    SciTech Connect (OSTI)

    Wopperer, P.; Dinh, P. M. [Universite de Toulouse, UPS, Laboratoire de Physique Theorique, IRSAMC, F-31062 Toulouse Cedex, France and CNRS, UMR 5152, F-31062 Toulouse Cedex (France); Faber, B.; Reinhard, P.-G. [Institut fuer Theoretische Physik, Universitaet Erlangen, D-91058 Erlangen (Germany); Suraud, E. [Universite de Toulouse, UPS, Laboratoire de Physique Theorique, IRSAMC, F-31062 Toulouse Cedex, France and CNRS, UMR 5152, F-31062 Toulouse Cedex (France); Institut fuer Theoretische Physik, Universitaet Erlangen, D-91058 Erlangen (Germany)

    2010-12-15T23:59:59.000Z

    We explore, from a theoretical perspective, photoelectron angular distributions (PADs) of the Na clusters Na{sub 8}, Na{sub 10}, Na{sub 12}, Na{sub 18}, Na{sub 3}{sup +}, Na{sub 11}{sup +}, Na{sub 13}{sup +}, and Na{sub 19}{sup +}. The basis of the description is the time-dependent local-density approximation (TDLDA), augmented by a self-interaction correction (SIC) to describe ionization properties correctly. The scheme is solved on a numerical grid in coordinate space with absorbing bounds. We assume for each cluster system an isotropic ensemble of free clusters and develop for the case of one-photon emission analytical formulas for computing the orientation-averaged PAD on the basis of a few TDLDA-SIC calculations for properly chosen reference orientations. It turns out that all the information in the averaged PAD is contained in one anisotropy parameter. We find that this parameter varies very little with system size, but as a whole is crucially influenced by the detailed ionic structure. We also make comparisons with direct orientation averaging and consider one example reaching outside the perturbative regime.

  16. Results from the NA62 2014 Commissioning Run

    E-Print Network [OSTI]

    Soldi, Dario

    2015-01-01T23:59:59.000Z

    The main purpose of the NA62 experiment is to measure the branching ratio of the (ultra) rare decay $K+ \\rightarrow {\\pi}+{\

  17. Office of Nuclear Material Integration (ONMI), NA-73

    National Nuclear Security Administration (NNSA)

    U.S. as well as Imports and Exports Jointly funded by the NRC & NNSA - Managed by NA-73 Fuel Cycle Facilities Conversion Enrichment Fuel Fabrication Power Reactors,...

  18. alvo molecular na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    relacionar as percepes de identidade profissional dos docentes de educao infantil com (more) Leito, Zuleica Maria Tavares de Brito 2013-01-01 122 for the NA48...

  19. armazenamento na energia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Rey Juan Carlos, Universidad 3 Portugal lidera consrcio envolvido na produo de "energia limpa, segura e abundante" Engineering Websites Summary: ) - A produo de...

  20. ambientais envolvidos na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Elisa Flvia Luiz Cardoso 2014-01-01 4 Portugal lidera consrcio envolvido na produo de "energia limpa, segura e abundante" Engineering Websites Summary: ) - A produo de...

  1. alta energia na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Leonardo Oliveira Ferreira 2006-01-01 2 Portugal lidera consrcio envolvido na produo de "energia limpa, segura e abundante" Engineering Websites Summary: ) - A produo de...

  2. Pion and kaon freezeout in NA44

    SciTech Connect (OSTI)

    NA44 Collaboration

    1994-12-01T23:59:59.000Z

    The NA44 spectrometer is optimized for the study of single and two-particle particle spectra near mid-rapidity for transverse momenta below {approx} 1 GeV/c. A large fraction of all pairs in the spectrometer`s acceptance are at low relative momenta, resulting in small statistical uncertainties on the extracted size parameters. In addition, the spectrometer`s clean particle identification allows the authors to measure correlation functions for pions, kaons, and protons. This contribution will concentrate on the source size parameters determined from pion and kaon correlation functions. These size parameters will be compared to calculations from the RQMD event generator and also interpreted in the context of a hydrodynamic model. Finally, the measured single particle spectra will be examined from the viewpoint of hydrodynamics.

  3. Crnica I Encontro Solar na UDC O pasado mrcores 24 de abril tivo lugar na Praza da Fraga (Campus da

    E-Print Network [OSTI]

    Fraguela, Basilio B.

    /informativos/os-universitarios-da-coruna-comparten-unha-xornada-de- gastronomia-solar-573783 http://www.lavozdegalicia.es/noticia/coruna/2013/04/24/cocina-universitaria-energiaCrónica I Encontro Solar na UDC O pasado mércores 24 de abril tivo lugar na Praza da Fraga (Campus da Zapateira) a primeira edición do Encontro Solar na UDC. Esta era a terceira das actividades

  4. TorqueSpeed Relationships of Na+ -driven Chimeric

    E-Print Network [OSTI]

    Berry, Richard

    , H+ in Escherichia coli and Na+ in marine Vibrio species, driven by an inward-directed electrochemiTorque­Speed Relationships of Na+ -driven Chimeric Flagellar Motors in Escherichia coli Yuichi in Escherichia coli promises to reveal the mechanism of the motor in unprecedented detail. We measured torque

  5. Analytical Potential Energy Surface for the Na + HF NaF + H reaction: Application of Conventional Transition-State Theory

    E-Print Network [OSTI]

    Analytical Potential Energy Surface for the Na + HF NaF + H reaction: Application of Conventional Transition-State Theory Alessandra F. A. Vilela, Ricardo Gargano a Patr´icia R.P. Barreto b a Instituto de from calculation of the rate constant using con- ventional Transition State Theory (TST

  6. Scintillation efficiency measurement of Na recoils in NaI(Tl) below the DAMA/LIBRA energy threshold

    E-Print Network [OSTI]

    Xu, Jingke; Calaprice, Frank; Westerdale, Shawn; Froborg, Francis; Suerfu, Burkhant; Alexander, Thomas; Aprahamian, Ani; Back, Henning O; Casarella, Clark; Fang, Xiao; Gupta, Yogesh K; Ianni, Aldo; Lamere, Edward; Lippincott, W Hugh; Liu, Qian; Lyons, Stephanie; Siegl, Kevin; Smith, Mallory; Tan, Wanpeng; Kolk, Bryant Vande

    2015-01-01T23:59:59.000Z

    The dark matter interpretation of the DAMA modulation signal depends on the NaI(Tl) scintillation efficiency of nuclear recoils. Previous measurements for Na recoils have large discrepancies, especially in the DAMA/LIBRA modulation energy region. We report a quenching effect measurement of Na recoils in NaI(Tl) from 3keV$_{\\text{nr}}$ to 52keV$_{\\text{nr}}$, covering the whole DAMA/LIBRA energy region for light WIMP interpretations. By using a low-energy, pulsed neutron beam, a double time-of-flight technique, and pulse-shape discrimination methods, we obtained the most accurate measurement of this kind for NaI(Tl) to date. The results differ significantly from the DAMA reported values at low energies, but fall between the other previous measurements. We present the implications of the new quenching results for the dark matter interpretation of the DAMA modulation signal.

  7. On the 21Na(p,gamma)22Mg thermonuclear rate for 22Na production in novae

    E-Print Network [OSTI]

    Nadya A. Smirnova; Alain Coc

    2000-08-16T23:59:59.000Z

    Classical novae are potential sources of gamma-rays, like the 1.275 MeV gamma emission following 22Na beta decay, that could be detected by appropriate instruments on board of future satellites like INTEGRAL. It has been shown that the production of 22Na by novae is affected by the uncertainty on the 21Na(p,gamma)22Mg rate and in particular by the unknown partial widths of the Ex = 5.714 MeV, J^pi = 2^+, 22Mg level. To reduce these uncertainties, we performed shell model calculations with the OXBASH code, compared the results with available spectroscopic data and calculated the missing partial widths. Finally, we discuss the influence of these results on the 21Na(p,gamma)22Mg reaction rate and 22Na synthesis.

  8. EUV micro-exposure tool at 0.5 NA for sub-16 nm lithography

    E-Print Network [OSTI]

    Goldstein, Michael

    2008-01-01T23:59:59.000Z

    25 nn has been achievedand a 0.5 NA micro- for Benefit opticprocesstechnologynode. A two-mirror 0.5 NA optical designisshown in figure 2. All are 0.5 NA (MET2) designs constrained

  9. auto-anticorpos na artrite: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  10. anti-sepsia intrabucal na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  11. anticorpos anti-mielina na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  12. ansa-tsirkonotsenov na ikh: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  13. auto-estima na funcionalidade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  14. anti-cd20 na terapia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  15. autonomia na auto-reconquista: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na monocarboxylate transport (SMCT) protein expression correlates with survival in colon cancer, 2006) We report an extensive characterization of the Na monocarboxy- late...

  16. O3-type Na(Mn?.??Fe?.??Co?.??Ni?.??)O?: a quaternary layered cathode compound for rechargeable Na ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Li, Xi [Massachusetts Institute of Technology, Cambridge, MA (United States). Dept. of Materials Science and Engineering; Zhou, Yong-Ning [Brookhaven National Laboratory (BNL), Upton, NY (United States); Wu, Di [Massachusetts Institute of Technology, Cambridge, MA (United States). Dept. of Mechanical Engineering; Liu, Lei [Massachusetts Institute of Technology, Cambridge, MA (United States). Dept. of Materials Science and Engineering; Ceder, Gerbrand [Massachusetts Institute of Technology, Cambridge, MA (United States). Dept. of Materials Science and Engineering; Yang, Xiao-Qing [Brookhaven National Laboratory (BNL), Upton, NY (United States)

    2014-12-01T23:59:59.000Z

    We report a new layered Na(Mn?.??Fe?.??Co?.??Ni?.??)O? compound with O3 oxygen stacking. It delivers 180 mAh/g initial discharge capacity and 578 Wh/kg specific energy density with good cycling capability at high cutoff voltage. In situ X-ray diffraction (XRD) shows a reversible structure evolution of O3-P3-O3'-O3'' upon Na de-intercalation. The excellent capacity and cycling performance at high cutoff voltage make it an important model system for studying the general issue of capacity fading in layered Na cathode compounds.

  17. Prospects for $K^+ \\to ?^+ ?\\bar{ ?}$ at CERN in NA62

    E-Print Network [OSTI]

    G. Aglieri Rinella; R. Aliberti; F. Ambrosino; B. Angelucci; A. Antonelli; G. Anzivino; R. Arcidiacono; I. Azhinenko; S. Balev; J. Bendotti; A. Biagioni; C. Biino; A. Bizzeti; T. Blazek; A. Blik; B. Bloch-Devaux; V. Bolotov; V. Bonaiuto; M. Bragadireanu; D. Britton; G. Britvich; N. Brook; F. Bucci; V. Buescher; F. Butin; E. Capitolo; C. Capoccia; T. Capussela; V. Carassiti; N. Cartiglia; A. Cassese; A. Catinaccio; A. Cecchetti; A. Ceccucci; P. Cenci; V. Cerny; C. Cerri; O. Chikilev; R. Ciaranfi; G. Collazuol; P. Cooke; P. Cooper; G. Corradi; E. Cortina Gil; F. Costantini; A. Cotta Ramusino; D. Coward; G. D'Agostini; J. Dainton; P. Dalpiaz; H. Danielsson; J. Degrange; N. De Simone; D. Di Filippo; L. Di Lella; N. Dixon; N. Doble; V. Duk; V. Elsha; J. Engelfried; T. Enik; V. Falaleev; R. Fantechi; L. Federici; M. Fiorini; J. Fry; A. Fucci; L. Fulton; S. Gallorini; L. Gatignon; A. Gianoli; S. Giudici; L. Glonti; A. Goncalves Martins; F. Gonnella; E. Goudzovski; R. Guida; E. Gushchin; F. Hahn; B. Hallgren; H. Heath; F. Herman; D. Hutchcroft; E. Iacopini; O. Jamet; P. Jarron; K. Kampf; J. Kaplon; V. Karjavin; V. Kekelidze; S. Kholodenko; G. Khoriauli; A. Khudyakov; Yu. Kiryushin; K. Kleinknecht; A. Kluge; M. Koval; V. Kozhuharov; M. Krivda; Y. Kudenko; J. Kunze; G. Lamanna; C. Lazzeroni; R. Leitner; R. Lenci; M. Lenti; E. Leonardi; P. Lichard; R. Lietava; L. Litov; D. Lomidze; A. Lonardo; N. Lurkin; D. Madigozhin; G. Maire; A. Makarov; I. Mannelli; G. Mannocchi; A. Mapelli; F. Marchetto; P. Massarotti; K. Massri; P. Matak; G. Mazza; E. Menichetti; M. Mirra; M. Misheva; N. Molokanova; J. Morant; M. Morel; M. Moulson; S. Movchan; D. Munday; M. Napolitano; F. Newson; A. Norton; M. Noy; G. Nuessle; V. Obraztsov; S. Padolski; R. Page; V. Palladino; A. Pardons; E. Pedreschi; M. Pepe; F. Perez Gomez; M. Perrin-Terrin; P. Petrov; F. Petrucci; R. Piandani; M. Piccini; D. Pietreanu; J. Pinzino; M. Pivanti; I. Polenkevich; I. Popov; Yu. Potrebenikov; D. Protopopescu; F. Raffaelli; M. Raggi; P. Riedler; A. Romano; P. Rubin; G. Ruggiero; V. Russo; V. Ryjov; A. Salamon; G. Salina; V. Samsonov; E. Santovetti; G. Saracino; F. Sargeni; S. Schifano; V. Semenov; A. Sergi; M. Serra; S. Shkarovskiy; A. Sotnikov; V. Sougonyaev; M. Sozzi; T. Spadaro; F. Spinella; R. Staley; M. Statera; P. Sutcliffe; N. Szilasi; D. Tagnani; M. Valdata-Nappi; P. Valente; M. Vasile; V. Vassilieva; B. Velghe; M. Veltri; S. Venditti; M. Vormstein; H. Wahl; R. Wanke; P. Wertelaers; A. Winhart; R. Winston; B. Wrona; O. Yushchenko; M. Zamkovsky; A. Zinchenko

    2014-11-01T23:59:59.000Z

    The NA62 experiment will begin taking data in 2015. Its primary purpose is a 10% measurement of the branching ratio of the ultrarare kaon decay $K^+ \\to \\pi^+ \

  18. Natural Gas Regulation- Delaware Public Service Commission (Delaware)

    Broader source: Energy.gov [DOE]

    The Delaware Public Service Commission regulates only the distribution of natural gas to Delaware consumers. The delivery and administrative costs associated with natural gas distribution are...

  19. Hormonal Regulation of the Polarized Function and Distribution of Na/H Exchange and Na/HC03

    E-Print Network [OSTI]

    Machen, Terry E.

    as the Na-dependent, amiloride-sensitive component of pHi recovery from an acid load induced by a pulse proteins have been discovered: direct tar- geting ofnewly synthesized proteins fromthe Golgi complex

  20. Forestry Policies (Delaware)

    Broader source: Energy.gov [DOE]

    Delaware's forests are managed by the State Forest Service (DFS), within the State Department of Agriculture. In 2010, the Forest Service issued its Resource Assessment and Strategy documents:

  1. Accidental Release Program (Delaware)

    Broader source: Energy.gov [DOE]

    The Delaware Accidental Release Prevention Regulation contains requirements for owners or operators of stationary sources having regulated extremely hazardous substances onsite to develop and...

  2. Hygroscopic Growth and Deliquescence of NaCl Nanoparticles Coated with Surfactant Ahmad Alshawa,,

    E-Print Network [OSTI]

    Nizkorodov, Sergey

    Hygroscopic Growth and Deliquescence of NaCl Nanoparticles Coated with Surfactant AOT Ahmad AlshawaVember 09, 2008; ReVised Manuscript ReceiVed: February 13, 2009 Aerosolized nanoparticles of NaCl coated of surfactant on the hygroscopic growth of NaCl were studied. For pure NaCl nanoparticles, the deliquescence

  3. Beyond Conventional Cathode Materials for Li-ion Batteries and Na-ion Batteries Nickel fluoride conversion materials and P2 type Na-ion intercalation cathodes /

    E-Print Network [OSTI]

    Lee, Dae Hoe

    2013-01-01T23:59:59.000Z

    graphite negative electrode for lithium-ion batteries.batteries. The Na anode materials must not be overlooked since graphite-

  4. Measurement of low-energy Na^+ -- Na total collision rate in an ion--neutral hybrid trap

    E-Print Network [OSTI]

    Goodman, D S; Kwolek, J M; Blümel, R; Narducci, F A; Smith, W W

    2014-01-01T23:59:59.000Z

    We present measurements of the total elastic and resonant charge-exchange ion-atom collision rate coefficient $k_\\mathrm{ia}$ of cold sodium (\\ce{Na}) with optically-dark low energy \\ce{Na+} ions in a hybrid ion-neutral trap. To determine $k_\\mathrm{ia}$, we measured the trap loading and loss from both a \\ce{Na} magneto-optical trap (MOT) and a linear radio frequency quadrupole Paul trap. We found the total rate coefficient to be $7.4 \\pm 1.9 \\times 10^{-8}$ cm$^3$/s for the type I \\ce{Na} MOT immersed within an $\\approx 140$ K ion cloud and $1.10 \\pm 0.25 \\times 10^{-7}$ cm$^3$/s for the type II \\ce{Na} MOT within an $\\approx 1070$ K ion cloud. Our measurements show excellent agreement with previously reported theoretical fully quantal \\textit{ab initio} calculations. In the process of determining the total rate coefficient, we demonstrate that a MOT can be used to probe an optically dark ion cloud's spatial distribution within a hybrid trap.

  5. The NA62 Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger

    E-Print Network [OSTI]

    V. Bonaiuto; A. Fucci; G. Paoluzzi; A. Salamon; G. Salina; E. Santovetti; F. Sargeni; F. M. Scarfi'

    2012-01-16T23:59:59.000Z

    The NA62 experiment at CERN SPS aims to measure the Branching Ratio of the very rare kaon decay K+ -> pi+ nu nubar collecting O(100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ -> pi+ pi0 decay. To suppress this background an efficient photo veto system is foreseen. In the 1-10 mrad angular region the NA48 high performance liquid krypton electromagnetic calorimeter is used. The design, implementation and current status of the Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger are presented.

  6. The NA62 Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger

    E-Print Network [OSTI]

    Vincenzo Bonaiuto; Adolfo Fucci; Giovanni Paoluzzi; Andrea Salamon; Gaetano Salina; Emanuele Santovetti; Fausto Sargeni; Francesco M. Scarfi'

    2012-01-18T23:59:59.000Z

    The NA62 experiment at CERN SPS aims to measure the Branching Ratio of the very rare kaon decay K+ -> pi+ nu nubar collecting O(100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ -> pi+ pi0 decay. To suppress this background an efficient photo veto system is foreseen. In the 1-10 mrad angular region the NA48 high performance liquid krypton electromagnetic calorimeter is used. The design, implementation and current status of the Liquid Krypton Electromagnetic Calorimeter Level 0 Trigger are presented.

  7. Investigation of thermonuclear $^{18}$Ne($?$,$p$)$^{21}$Na rate via resonant elastic scattering of $^{21}$Na+$p$

    E-Print Network [OSTI]

    L. Y. Zhang; J. J. He; A. Parikh; S. W. Xu; H. Yamaguchi; D. Kahl; S. Kubono; P. Mohr; J. Hu; P. Ma; S. Z. Chen; Y. Wakabayashi; H. W. Wang; W. D. Tian; R. F. Chen; B. Guo; T. Hashimoto; Y. Togano; S. Hayakawa; T. Teranishi; N. Iwasa; T. Yamada; T. Komatsubara; Y. H. Zhang; X. H. Zhou

    2014-03-19T23:59:59.000Z

    The $^{18}$Ne($\\alpha$,$p$)$^{21}$Na reaction is thought to be one of the key breakout reactions from the hot CNO cycles to the rp-process in type I x-ray bursts. In this work, the resonant properties of the compound nucleus $^{22}$Mg have been investigated by measuring the resonant elastic scattering of $^{21}$Na+$p$. An 89 MeV $^{21}$Na radioactive beam delivered from the CNS Radioactive Ion Beam Separator bombarded an 8.8 mg/cm$^2$ thick polyethylene (CH$_{2}$)$_{n}$ target. The $^{21}$Na beam intensity was about 2$\\times$10$^{5}$ pps, with a purity of about 70% on target. The recoiled protons were measured at the center-of-mass scattering angles of $\\theta_{c.m.}$$\\approx$175.2${^\\circ}$, 152.2${^\\circ}$, and 150.5${^\\circ}$ by three sets of $\\Delta E$-$E$ telescopes, respectively. The excitation function was obtained with the thick-target method over energies $E_x$($^{22}$Mg)=5.5--9.2 MeV. In total, 23 states above the proton-threshold in $^{22}$Mg were observed, and their resonant parameters were determined via an $R$-matrix analysis of the excitation functions. We have made several new $J^{\\pi}$ assignments and confirmed some tentative assignments made in previous work. The thermonuclear $^{18}$Ne($\\alpha$,$p$)$^{21}$Na rate has been recalculated based on our recommended spin-parity assignments. The astrophysical impact of our new rate has been investigated through one-zone postprocessing x-ray burst calculations. We find that the $^{18}$Ne($\\alpha$,$p$)$^{21}$Na rate significantly affects the peak nuclear energy generation rate, reaction fluxes, as well as the onset temperature of this breakout reaction in these astrophysical phenomena.

  8. Delaware Transportation Infrastructure Forum Problem Identification Statements

    E-Print Network [OSTI]

    Firestone, Jeremy

    2013 Delaware Transportation Infrastructure Forum Problem Identification Statements Sponsored by The Delaware Center for Transportation and the Delaware Department of Transportation Delaware Center for Transportation Your main resource for transportation education and research Identifying Important Issues Related

  9. Observation of structure in laser-induced Penning and associative ionization in crossed-beam Na+Na collisions

    SciTech Connect (OSTI)

    Polak-Dingels, P.; Delpech, J.; Weiner, J.

    1980-06-23T23:59:59.000Z

    The results of double-laser experiments in which Na/sup +//sub 2/ and Na/sup +/ are produced in crossed-alkali beams under single-collision conditions in the presence of strong optical fields are reported. Structure in the mass-selected product ion intensity as a function laser frequency is observed when the optical field is strongly focused and tuned far off atomic or dimer transitions. These measurements are the first to show that nuclear motion of the quasimolecular collision intermediate plays an important role in laser-induced collisional ionization.

  10. Rate coefficient for the chemi-ionization in slow Li*(n)+Li and Na*(n)+Na collisions

    SciTech Connect (OSTI)

    Ignjatovic, Lj.M.; Mihajlov, A.A. [Institute of Physics, P. O. Box 68, 11080 Zemun, Belgrade (Serbia and Montenegro)

    2005-08-15T23:59:59.000Z

    The chemi-ionization processes in slow-atom-Rydberg-atom collisions are considered in this paper. A version of the semiclassical method of rate coefficient calculation that is free of the presumptions which significantly limited its applicability previously is presented. The method is applied to the cases of Li*(n)+Li and Na*(n)+Na collisions for the principal quantum numbers 5{<=}n{<=}25 and temperatures 600{<=}T{<=}1200 K. The results of calculation of the rate coefficients of the corresponding chemi-ionization processes are compared to the existing experimental data from the literature.

  11. National Aeronautics and Space Administration NaNotechNology Roadmap

    E-Print Network [OSTI]

    Waliser, Duane E.

    National Aeronautics and Space Administration · NaNotechNology Roadmap Technology Area 10 Michael A-27 #12;Foreword NASA's integrated technology roadmap, including both technology pull and technology push state of this effort is documented in NASA's DRAFT Space Technology Roadmap, an integrated set

  12. aceleradores na ciencia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    aceleradores na ciencia First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 CURSO DE VERN CIENCIAS FORENSES...

  13. High precision measurements of Na-26 beta(-) decay 

    E-Print Network [OSTI]

    Grinyer, GF; Svensson, CE; Andreoiu, C.; Andreyev, AN; Austin, RAE; Ball, GC; Chakrawarthy, RS; Finlay, P.; Garrett, PE; Hackman, G.; Hardy, John C.; Hyland, B.; Iacob, VE; Koopmans, KA; Kulp, WD; Leslie, JR; Macdonald, JA; Morton, AC; Ormand, WE; Osborne, CJ; Pearson, CJ; Phillips, AA; Sarazin, F.; Schumaker, MA; Scraggs, HC; Schwarzenberg, J.; Smith, MB; Valiente-Dobon, JJ; Waddington, JC; Wood, JL; Zganjar, EF.

    2005-01-01T23:59:59.000Z

    High-precision measurements of the half-life and beta-branching ratios for the beta(-) decay of Na-26 to Mg-26 have been measured in beta-counting and gamma-decay experiments, respectively. A 4 pi proportional counter and fast tape transport system...

  14. NNSA PERSONNEL SECURITY CLEARANCE ACTION REQUEST Program Code: NA

    E-Print Network [OSTI]

    Fuerschbach, Phillip

    NNSA PERSONNEL SECURITY CLEARANCE ACTION REQUEST Program Code: NA OFFICIAL USE ONLY (UPON sections and fields are required to be completed. The National Nuclear Security Administration (NNSA material (SNM). AL F 470.1 Form is used by NNSA Personnel Security Department to initiate background

  15. Background p(450 GeV/c)-p,d (NA51)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    #12;#12;Background ' Open charm J / Drell-Yan #12;* p(450 GeV/c)-p,d (NA51) 208 16 p(200 Ge) 32 p(450 GeV/c)-A (A=C,Al,Cu,W) (NA38) 10101 10101010 652 3 4 B targetprojectile B(J/)/(AB)(nb) 5 4 3 Pb(208x158 GeV/c)-Pb (NA50) S(32x200 GeV/c)-U (NA38) p(200 GeV/c)-W (NA38) p(450 GeV/c)-A (A=p,d) (NA

  16. Dam Safety (Delaware)

    Broader source: Energy.gov [DOE]

    The Delaware Dam Safety Law was adopted in 2004 and provides the framework for proper design, construction, operation, maintenance, and inspection of dams in the interest of public health, safety,...

  17. Hazardous Waste Management (Delaware)

    Broader source: Energy.gov [DOE]

    The act authorizes the Delaware Department of Natural Resources and Environment Control (DNREC) to regulate hazardous waste and create a program to manage sources of hazardous waste. The act...

  18. University of Delaware UNDERGRADUATE

    E-Print Network [OSTI]

    Firestone, Jeremy

    Medical Institute c = National Science Foundation d = National Institute of Health e = Delaware Water: Causation for the severity difference between adult-onset and congenital Myotonic Dystrophy?. (47) Elizabeth

  19. Investigation of thermonuclear $^{18}$Ne($\\alpha$,$p$)$^{21}$Na rate via resonant elastic scattering of $^{21}$Na+$p$

    E-Print Network [OSTI]

    Zhang, L Y; Parikh, A; Xu, S W; Yamaguchi, H; Kahl, D; Kubono, S; Mohr, P; Hu, J; Ma, P; Chen, S Z; Wakabayashi, Y; Wang, H W; Tian, W D; Chen, R F; Guo, B; Hashimoto, T; Togano, Y; Hayakawa, S; Teranishi, T; Iwasa, N; Yamada, T; Komatsubara, T; Zhang, Y H; Zhou, X H

    2014-01-01T23:59:59.000Z

    The $^{18}$Ne($\\alpha$,$p$)$^{21}$Na reaction is thought to be one of the key breakout reactions from the hot CNO cycles to the rp-process in type I x-ray bursts. In this work, the resonant properties of the compound nucleus $^{22}$Mg have been investigated by measuring the resonant elastic scattering of $^{21}$Na+$p$. An 89 MeV $^{21}$Na radioactive beam delivered from the CNS Radioactive Ion Beam Separator bombarded an 8.8 mg/cm$^2$ thick polyethylene (CH$_{2}$)$_{n}$ target. The $^{21}$Na beam intensity was about 2$\\times$10$^{5}$ pps, with a purity of about 70% on target. The recoiled protons were measured at the center-of-mass scattering angles of $\\theta_{c.m.}$$\\approx$175.2${^\\circ}$, 152.2${^\\circ}$, and 150.5${^\\circ}$ by three sets of $\\Delta E$-$E$ telescopes, respectively. The excitation function was obtained with the thick-target method over energies $E_x$($^{22}$Mg)=5.5--9.2 MeV. In total, 23 states above the proton-threshold in $^{22}$Mg were observed, and their resonant parameters were determ...

  20. Delaware Greenhouse Gas Reduction Projects Grant Program (Delaware)

    Broader source: Energy.gov [DOE]

    The Delaware Greenhouse Gas Reduction Projects Grant Program is funded by the Greenhouse Gas Reduction Projects Fund, established by the Act to Amend Title 7 of the Delaware Code Relating to a...

  1. aqueous na2s2o3 solutions: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Na+ in the aqueous solutions and aromatic rings on the graphite surfaces, promoting the adsorption of water molecules together with cations onto the graphite surfaces, i.e., Na+...

  2. The Effect of Water on the Adsorption of NO in Na- and Ba-Y,FAU...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Water on the Adsorption of NO in Na- and Ba-Y,FAU Zeolites: A Combined FTIR and TPD Investigation. The Effect of Water on the Adsorption of NO in Na- and Ba-Y,FAU Zeolites: A...

  3. In Situ 13C and 23Na Magic Angle Spinning NMR Investigation of...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    In Situ 13C and 23Na Magic Angle Spinning NMR Investigation of Supercritical CO2 Incorporation in Smectite-Natural Organic In Situ 13C and 23Na Magic Angle Spinning NMR...

  4. Thin Porous Metal Sheet-Supported NaA Zeolite Membrane for Water...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Thin Porous Metal Sheet-Supported NaA Zeolite Membrane for WaterEthanol Separation. Thin Porous Metal Sheet-Supported NaA Zeolite Membrane for WaterEthanol Separation. Abstract:...

  5. The Beam and Detector for the NA48 Neutral Kaon CP Violation Experiment at CERN

    E-Print Network [OSTI]

    Fanti, V; Marras, D; Musa, L; Nappi, A; Batley, J Richard; Bevan, A; Dosanjh, R S; Galik, R; Gershon, T; Hay, B; Kalmus, George Ernest; Katvars, S; Lazzeroni, C; Moore, R; Munday, D J; Needham, M D; Olaiya, E; Parker, M A; Patel, M; Slater, M; Takach, S; White, T O; Wotton; Bal, F; Barr, G; Bocquet, G; Bremer, J; Brodier-Yourstone, P; Buchholz, P; Burns, M; Ceccucci, A; Clément, M; Cuhadar-Donzelsmann, T; Cundy, Donald C; Doble, Niels; Falaleev, V; Formenti, F; Funk, W; Gatignon, L; Gonidec, A; Grafström, P; Hallgren, B; Kapusta, P; Kesseler, G; Kubischta, Werner; Iwanski, W; Lacourt, A; Laverriere, G; Linser, G; Ljuslin, C; Marchioro, A; Mast, M; Matheys, J P; Morel, M; Norton, A; Orlic, J P; Panzer-Steindel, B; Schinzel, D; Seidl, W; Taureg, H; Tarlé, J C; Velasco, M; Vossnack, O; Wahl, H; Wertelaers, P; Weterings, J; Cheshkov, C; Gaponenko, A; Goudzovski, E; Khristov, P Z; Kalinin, A; Kekelidze, V D; Kozhevnikov, Yu; Madigozhin, D T; Molokanova, N A; Potrebenikov, Yu K; Tkatchev, A; Zinchenko, A I; Boyle, O; Knowles, I; Martin, V; Parsons, H; Peach, K J; Sacco, R; Veitch, E; Walker, A; Carassiti, V; Contalbrigo, M; Cotta-Ramusino, A; Dalpiaz, P; Damiani, C; Duclos, J; Ferretti, P; Frabetti, P L; Gianoli, A; Martini, M; Petrucci, F; Porcu, M; Rossi, F; Savrié, M; Scarpa, M; Simani, C; Bizzeti, A; Calvetti, M; Collazuol, G; Graziani, G; Iacopini, E; Lenti, M; Martelli, F; Michetti, A; Ruggiero, G; Veltri, M; Becker, H G; Behler, M; Blümer, H; Coward, D; Ebersberger, C; Eppard, K; Eppard, M; Fox, H; Geib, K H; Hirstius, A; Kalter, A; Kleinknecht, K; Koch, U; Köpke, L; Lopes da Silva, P; Luitz, S; Marouelli, P; Masetti, L; Melzer-Pellmann, I; Moosbrugger, U; Morales-Morales, C; Peters, A; Renk, B; Scheidt, J; Schmidt, J; Schmidt, S A; Schönharting, V; Schué, Yu; Staeck, J; Wanke, R; Wilhelm, R; Winhart, A; Wittgen, M; Zeitnitz, O; Dabrowski, A; Fonseca-Martin, T; Chollet, J C; Crépé, S; de La Taille, C; Fayard, L; Iconomidou-Fayard, L; Martin-Chassard, G; Ocariz, J; Unal, G; Wingerter-Seez, I; Anzivino, Giuseppina; Bordacchini, F; Cenci, P; Imbergamo, E; Lariccia, P; Lubrano, P; Mestvirishvili, A; Papi, A; Pepé, M; Piccini, M; Punturo, M; Talamonti, C; Tondini, F; Bertanza, L; Calafiura, P; Carosi, R; Casali, R; Cerri, C; Cirilli, M; Costantini, F; Fantechi, R; Fidecaro, Francesco; Fiorini, L; Giudici, S; Gorini, B; Laico, F; Lamanna, G; Mannelli, I; Marzulli, V; Passuello, D; Pierazzini, G M; Raffaelli, F; Sozzi, M; Tripiccione, R; Anvar, S; Bédérède, D; Bugeon, F; Chèze, J B; Cogan, J; De Beer, M; Debu, P; Durand, D; Edard, S; Fallou, J L; Formica, A; Gosset, L; Granier de Cassagnac, R; Heitzmann, J; Le Provost, H; Louis, F; Mandzhavidze, I; Mazzucato, E; Migliori, A; Mur, M; Peyaud, B; Schanne, S; Steinkamp, O; Tarte, Gérard; Turlay, René; Vallage, B; Holder, M; Augustin, I; Bender, M; Maier, A; Schwarz, I; Ziolkowski, M; Arcidiacono, R; Barberis, P L; Benotto, F; Bertolino, F; Biino, C; Brunasso, O; Cartiglia, N; Clemencic, M; Dattola, D; Goy-Lopez, S; Govi, G; Guida, R; Marchetto, F; Menichetti, E; Palestini, S; Pastrone, N; Chlopik, A; Guzik, Z; Nassalski, J P; Rondio, E; Szleper, M; Wislicki, W; Wronka, S; Dibon, Heinz; Fischer, G; Jeitler, Manfred; Markytan, Manfred; Mikulec, I; Neuhofer, G; Pernicka, M; Taurok, Anton; Widhalm, L

    2007-01-01T23:59:59.000Z

    The Beam and Detector, used for the NA48 experiment, devoted to the measurement of $Re(\\epsilon^{\\prime}/\\epsilon)$, and for the NA48/1 experiment on rare K_S and neutral hyperon decays, are described.

  6. Impact of Biodiesel-Based Na on the Selective Catalytic Reduction...

    Broader source: Energy.gov (indexed) [DOE]

    Impact of Biodiesel-Based Na on the Selective Catalytic Reduction (SCR) of NOx Using Cu-zeolite Impact of Biodiesel-Based Na on the Selective Catalytic Reduction (SCR) of NOx Using...

  7. Caustic Recycle from Hanford Tank Waste Using Large Area NaSICON Structures (LANS)

    SciTech Connect (OSTI)

    Fountain, Matthew S.; Sevigny, Gary J.; Balagopal, S.; Bhavaraju, S.

    2009-03-31T23:59:59.000Z

    This report presents the results of a 5-day test of an electrochemical bench-scale apparatus using a proprietary (NAS-GY) material formulation of a (Na) Super Ion Conductor (NaSICON) membrane in a Large Area NaSICON Structures (LANS) configuration. The primary objectives of this work were to assess system performance, membrane seal integrity, and material degradation while removing Na from Group 5 and 6 tank waste from the Hanford Site.

  8. Fiscalizao e Controle: O Poder Legislativo na Argentina e no Brasil Contemporneos

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Fiscalização e Controle: O Poder Legislativo na Argentina e no Brasil Contemporâneos Charles na Argentina e no Brasil Contemporâneos "La société a le droit de demander compte à tout agent public concentrar-se na análise das novas instituições de controle externo no Brasil e na Argentina, de acordo com o

  9. Update on the SEMATECH 0.5 NA Extreme-Ultraviolet Lithography (EUVL) Microfield Exposure Tool (MET)

    E-Print Network [OSTI]

    Cummings, Kevin

    2014-01-01T23:59:59.000Z

    eld Exposure Tools with 0.5 NA,” Proc. SPIE TBP (2014) [6]microexposure tool at 0.5 NA for sub-16 nm lithography,&Update on the SEMATECH 0.5 NA Extreme Ultraviolet

  10. Cosmogenic radionuclide production in NaI(Tl) crystals

    E-Print Network [OSTI]

    J. Amaré; S. Cebrián; C. Cuesta; E. García; C. Ginestra; M. Martínez; M. A. Oliván; Y. Ortigoza; A. Ortiz de Solórzano; C. Pobes; J. Puimedón; M. L. Sarsa; J. A. Villar; P. Villar

    2015-01-16T23:59:59.000Z

    The production of long-lived radioactive isotopes in materials due to the exposure to cosmic rays on Earth surface can be an hazard for experiments demanding ultra-low background conditions, typically performed deep underground. Production rates of cosmogenic isotopes in all the materials present in the experimental set-up, as well as the corresponding cosmic rays exposure history, must be both well known in order to assess the relevance of this effect in the achievable sensitivity of a given experiment. Although NaI(Tl) scintillators are being used in experiments aiming at the direct detection of dark matter since the first nineties of the last century, very few data about cosmogenic isotopes production rates have been published up to date. In this work we present data from two 12.5 kg NaI(Tl) detectors, developed in the frame of the ANAIS project, which were installed inside a convenient shielding at the Canfranc Underground Laboratory just after finishing surface exposure to cosmic rays. The very fast start of data taking allowed to identify and quantify isotopes with half-lives of the order of tens of days. Initial activities underground have been measured and then production rates at sea level have been estimated following the history of detectors; values of about a few tens of nuclei per kg and day for Te isotopes and 22Na and of a few hundreds for I isotopes have been found. These are the first direct estimates of production rates of cosmogenic nuclides in NaI crystals. A comparison of the so deduced rates with calculations using typical cosmic neutron flux at sea level and a carefully selected description of excitation functions will be also presented together with an estimate of the corresponding contribution to the background at low and high energies, which can be relevant for experiments aiming at rare events searches.

  11. Besedje stare kme?ke delovne šege na Koroškem – steljeraje

    E-Print Network [OSTI]

    Benko, Anja

    2010-01-01T23:59:59.000Z

    dolo?enem podro?ju s pomo?jo rok U? s?ta:rix ?ca:jtix, ?k? ?še ni b?w? ?n? ?c?:st pa ne e?l?:ktrike pa ?tuj k?m?:?ke mexani?za:cije ?ni:so poz?na:li, se je na ?pa:u?rex de?wa:wo u??s? na ?ro:ke. SSKJ + Plet. + delo || ?d?:wo -a s delanje, vezano na... ?lu:ksus. SSKJ – Plet. – paver || ?pa:w?r -ra m kmet U? s?ta:rix ?ca:jtix, ?k? ?še ni b?w? ?n? ?c?:st pa ne e?l?:ktrike pa ?tuj k?m?:?ke mexani?za:cije ?ni:so poz?na:li, se je na ?pa:u?rex de?wa:wo u??s? na ?ro:ke. [nem. der Bauer kmet] SSKJ + (nižje...

  12. Impact of surface roughness on the electrical parameters of industrial high efficiency NaOH-NaOCl textured multicrystalline silicon solar cell

    SciTech Connect (OSTI)

    Basu, P.K. [Department of Physics, Echelon Institute of Technology, Faridabad 121002, Haryana (India); Pujahari, R.M. [Department of Physics, Echelon Institute of Technology, Faridabad 121002, Haryana (India); Department of Physics, Manav Rachna International University, Faridabad 121001, Haryana (India); Kaur, Harpreet [Department of Physics, Manav Rachna International University, Faridabad 121001, Haryana (India); Department of Physics, Advanced Institute of Technology and Management, Palwal 121105, Haryana (India); Singh, Devi [Department of Physics, Manav Rachna International University, Faridabad 121001, Haryana (India); Varandani, D.; Mehta, B.R. [Department of Physics, Indian Institute of Technology, New Delhi 110016 (India)

    2010-09-15T23:59:59.000Z

    Sodium hydroxide (NaOH) and sodium hypochlorite (NaOCl) solution (1:1 ratio by volume) based texturization process at 80-82 C is an easy, low cost and comparatively new and convenient option for fabrication of any multicrystalline silicon (mC-Si) solar cell. In the present study atomic force microscope is used to observe the intragrain surface in a miniscule area (3 {mu}m x 3 {mu}m) of NaOH-NaOCl textured surface by two and three dimensional analysis, roughness analysis and section analysis. The r.m.s value of the surface parameter of 7.0 nm ascertains the smoothness of the textured surface and further the surface reflectivity is minimized to 4-6% in the 500-1000 nm wavelength range by a proper silicon nitride anti-reflection coating. Comparing with the standard HF-HNO{sub 3}-CH{sub 3}COOH acid textured cell, the NaOH-NaOCl textured cell shows a comparatively lower value of series resistance of 7.17 m{omega}, higher value of shunt resistance of 18.4 {omega} to yield a fill factor of 0.766 leading to more than 15% cell efficiency in the industrial cell processing line. This AFM study yields different surface roughness parameters for the NaOH-NaOCl textured wafers which can be used as a reference standard for optimized texturing. (author)

  13. NA-ASC-100R-04-Vol.1-Rev.0

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTubahq.na.govSecurityMaintaining theSan Jose-San| National

  14. Cell Degradation of a Na-NiCl2 (ZEBRA) Battery

    SciTech Connect (OSTI)

    Li, Guosheng; Lu, Xiaochuan; Kim, Jin Yong; Lemmon, John P.; Sprenkle, Vincent L.

    2013-11-01T23:59:59.000Z

    In this work, the parameters influencing the degradation of a Na-NiCl2 (ZEBRA) battery were investigated. Planar Na-NiCl2 cells using ?”-alumina solid electrolyte (BASE) were tested with different C-rates, Ni/NaCl ratios, and capacity windows, in order to identify the key parameters for the degradation of Na-NiCl2 battery. The morphology of NaCl and Ni particles were extensively investigated after 60 cycles under various test conditions using a scanning electron microscope. A strong correlation between the particle size (NaCl and Ni) and battery degradation was observed in this work. Even though the growth of both Ni and NaCl can influence the cell degradation, our results indicate that the growth of NaCl is a dominant factor in cell degradation. The use of excess Ni seems to play a role in tolerating the negative effects of particle growth on degradation since the available active surface area of Ni particles can be still sufficient even after particle growth. For NaCl, a large cycling window was the most significant factor, of which effects were amplified with decrease in Ni/NaCl ratio.

  15. Functional and operational design requirements for decontamination and decommissioning of the EBR-I Mark-II NaK: Final report. [NaK eutectics

    SciTech Connect (OSTI)

    Brown, B.W.; Crandall, D.L.; Dafoe, R.E.; Dolenc, M.R.; LaRue, D.M.

    1987-09-01T23:59:59.000Z

    Approximately 180 gal of sodium/potassium (NaK) eutectic liquid metal were severely radioactively contaminated during a meltdown of the Mark-II core of the Experimental Breeder Reactor-I (EBR-I) in November 1955. This contaminated NaK, which is contained in four vessels, is currently stored in an underground bunker located at the Army Reentry Vehicle Facility Site (ARVFS) located approximately at the center of the Idaho National Engineering Laboratory (INEL). This document presents the Functional and Operational Requirements (F and ORs) for the D and D of the contaminated NaK and the ARVFS bunker site. This project will chemically deactivate the NaK; dispose of the radioactively contaminated product at a designated burial site; chemically deactivate any residual NaK in the containers, and dispose of the containers at a designated burial site; decontaminate and decommission any contaminated process equipment used in these operations, and decontaminate and decommission the ARVFS bunker site. Completion of the above technical objectives will allow for the effective disposition of the NaK, and will return the ARFVS bunker and immediate area to a reusable condition. Upon completion, the ARVFS NaK, which is now considered a significant potential hazard, will be removed from the Surplus Facilities Management Program priority listing of projects. 33 refs., 8 figs.

  16. Photoemission study of the electronic structure and charge density waves of Na?Ti?Sb?O

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tan, S. Y.; Jiang, J.; Ye, Z. R.; Niu, X. H.; Song, Y.; Zhang, C. L.; Dai, P. C.; Xie, B. P.; Lai, X. C.; Feng, D. L.

    2015-04-30T23:59:59.000Z

    The electronic structure of Na?Ti?Sb?O single crystal is studied by photon energy and polarization dependent angle-resolved photoemission spectroscopy (ARPES). The obtained band structure and Fermi surface agree well with the band structure calculation of Na?Ti?Sb?O in the non-magnetic state, which indicates that there is no magnetic order in Na?Ti?Sb?O and the electronic correlation is weak. Polarization dependent ARPES results suggest the multi-band and multi-orbital nature of Na?Ti?Sb?O. Photon energy dependent ARPES results suggest that the electronic structure of Na?Ti?Sb?O is rather two-dimensional. Moreover, we find a density wave energy gap forms below the transition temperature and reaches 65 meV atmore »7 K, indicating that Na?Ti?Sb?O is likely a weakly correlated CDW material in the strong electron-phonon interaction regime. (author)« less

  17. Bulk and track etch properties of CR-39 SSNTD etched in NaOH/ethanol

    E-Print Network [OSTI]

    Yu, K.N.

    Bulk and track etch properties of CR-39 SSNTD etched in NaOH/ethanol K.F. Chan, F.M.F. Ng, D. described the use of NaOH/ethanol as an etchant for the CR-39 detector, and have determined the corre and track etch properties of CR- 39 in NaOH/ethanol were derived from direct measurements. The bulk etch

  18. MSSBAUER STUDIES OF NaFeS2 : MAGNETIC HYPERFINE FIELDS AND COVALENCY IN MFeS2 COMPOUNDS (M=Na, K, Rb, Cs) (*)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    'étude Mössbauer de NaFeS2, de la température ambiante à celle de l'hélium liquide, révèle la présence d. Abstract. 2014 Mössbauer studies of NaFeS2 from room temperature down to liquid helium tem- perature. The temperature stability was ± 2 °C. The samples were prepared by fusing iron powder with sodium carbonate

  19. Molecular dynamics investigation of Na{sup +} in Na{sub 2}Ni{sub 2}TeO{sub 6}

    SciTech Connect (OSTI)

    Sau, Kartik, E-mail: padmakumarp@iitg.ernet.in; Kumar, P. Padma, E-mail: padmakumarp@iitg.ernet.in [Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039 (India)

    2014-04-24T23:59:59.000Z

    An inter-atomic potential for Na{sub 2}Ni{sub 2}TeO{sub 6} in the Parrinello- Rahman-Vashishta (PRV) model is parameterized empirically. The potential reproduces variety of structural and transport properties of that material in good agreement with recent experimental results. The study provides fresh insights on the migration channels and mechanism of Na{sup +} in the system.

  20. Intercalation of a Nonionic Surfactant (C10E3) bilayer into a Na-Montmorillonite Clay

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Intercalation of a Nonionic Surfactant (C10E3) bilayer into a Na-Montmorillonite Clay Régis of a Na-montmorillonite clay at several concentrations. The synthesized organoclays were characterized surfactants in clays where the expansion of the interlayer space was limited to two monolayers parallel

  1. Grant Title: AERA DISSERTATION GRANTS Funding Opportunity Number: N/A

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: AERA DISSERTATION GRANTS Funding Opportunity Number: N/A Agency/Department: AERA Grants Program with support from the National Science Foundation (NSF). Area of Research: Dissertation dissertation. Release and Expiration: N/A Application Deadline: January 23, 2013. Amount: Awards

  2. Departamento de Electronica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na

    E-Print Network [OSTI]

    Fraguela, Basilio B.

    Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru;Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na AC LUCEH;Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na AC LUCEH

  3. Na K -pump ligands modulate gating of palytoxin-induced ion channels

    E-Print Network [OSTI]

    Gadsby, David

    Na K -pump ligands modulate gating of palytoxin-induced ion channels Pablo Artigas and David C (received for review September 26, 2002) The Na K pump is a ubiquitous P-type ATPase that binds three -ion occlusion to phosphorylation of the pump by ATP and of K -ion occlusion to its dephosphorylation

  4. Measurement of (n,a) reactions on 147 Sm using a lead

    E-Print Network [OSTI]

    Danon, Yaron

    Measurement of (n,a) reactions on 147 Sm and 149 Sm using a lead slowing-down spectrometer J December 2011 Accepted 4 January 2012 Available online 12 January 2012 Keywords: (n,a) Lead slowing-down spectrometer Digitizer Compensated detectors Samarium Sm-147 Sm-149 a b s t r a c t The lead slowing

  5. Observation of laser-induced associative ionization in crossed-beam Na+Li collisions

    SciTech Connect (OSTI)

    Polak-Dingels, P.; Keller, J.; Weiner, J.; Gauthier, J.h.; Bras, N.

    1981-08-01T23:59:59.000Z

    We report the observation of NaLi/sup +/ produced by crossed-beam collisions of Na and Li in the presence of a single laser field. The magnitude of the cross section and its dependence on laser intensity are in accord with a simple second-order perturbation theory.

  6. The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An In Situ FTIR and TPDTPR Study. The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An In Situ FTIR and TPDTPR...

  7. Graphitic Phase of NaCl. Bulk Properties and Nanoscale Stability Alexander G. Kvashnin,,,

    E-Print Network [OSTI]

    Tománek, David

    Graphitic Phase of NaCl. Bulk Properties and Nanoscale Stability Alexander G. Kvashnin,,,§ Pavel B approach to evaluate the stability and physical properties of the nanometer-thickness NaCl layered films and found that the rock salt films with a (111) surface become unstable with thickness below 1 nm

  8. Synthesis and crystal structure of new layered BaNaSc(BO{sub 3}){sub 2} and BaNaY(BO{sub 3}){sub 2} orthoborates

    SciTech Connect (OSTI)

    Seryotkin, Yurii V., E-mail: yuvs@uiggm.nsc.r [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation); Bakakin, Vladimir V. [Institute of Inorganic Chemistry RAS, 3, Lavrentieva avenue, 630090 Novosibirsk (Russian Federation); Kokh, Aleksandr E.; Kononova, Nadezhda G. [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Svetlyakova, Tatyana N. [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation); Kokh, Konstantin A. [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Drebushchak, Tatyana N. [Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation); Institute of Solid State Chemistry and Mechanochemistry RAS, 18, Kutateladze street, 630128 Novosibirsk (Russian Federation)

    2010-05-15T23:59:59.000Z

    Crystals of two new layered BaNaSc(BO{sub 3}){sub 2} (I) and BaNaY(BO{sub 3}){sub 2} (II) orthoborates are grown from the melt-solution by the spontaneous crystallization onto the platinum loop. Single crystal X-ray analysis showed that the compounds are isostructural with the space group R3-bar, a=5.23944(12) and 5.3338(2) A, and c=34.5919(11) and 35.8303(19) A for I and II, respectively, Z=6. The distinctive feature of the structure is the close-packed composite anion-cation (Ba,Na)(BO{sub 3}) layers. The layers are combined into the base building packages of two types: {l_brace}M{sup 3+}[Ba{sup 2+}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup +} and {l_brace}M{sup 3+}[Na{sup +}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup -}, where M is Sc or Y. Neutral-charge two-package (four-layer) blocks are stacked by the rhombohedral principle into twelve layers of the cubic packing. - Graphical abstract: The distinctive feature of new orthoborate crystals BaNaSc(BO{sub 3}){sub 2} and BaNaY(BO{sub 3}){sub 2} is the combination of base building packages of two types: {l_brace}M{sup 3+}[Ba{sup 2+}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup +} and {l_brace}M{sup 3+}[Na{sup +}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup -}, where M is Sc or Y.

  9. Spectroscopy of $^{28}$Na: shell evolution toward the drip line

    E-Print Network [OSTI]

    Lepailleur, A; Mutschler, A; Sorlin, O; Bader, V; Bancroft, C; Barofsky, D; Bastin, B; Baugher, T; Bazin, D; Bildstein, V; Borcea, C; Borcea, R; Brown, B A; Caceres, L; Gade, A; Gaudefroy, L; Grévy, S; Grinyer, G F; Iwasaki, H; Khan, E; Kröll, T; Langer, C; Lemasson, A; Llidoo, O; Lloyd, J; Negoita, F; Santos, F de Oliveira; Perdikakis, G; Recchia, F; Redpath, T; Roger, T; Rotaru, F; Saenz, S; Saint-Laurent, M -G; Smalley, D; Sohler, D; Stanoiu, M; Stroberg, S R; Thomas, J C; Vandebrouck, M; Weisshaar, D; Westerberg, A

    2015-01-01T23:59:59.000Z

    Excited states in $^{28}$Na have been studied using the $\\beta$-decay of implanted $^{28}$Ne ions at GANIL/LISE as well as the in-beam $\\gamma$-ray spectroscopy at the NSCL/S800 facility. New states of positive (J$^{\\pi}$=3,4$^+$) and negative (J$^{\\pi}$=1-5$^-$) parity are proposed. The former arise from the coupling between 0d$\\_{5/2}$ protons and a 0d$\\_{3/2}$ neutron, while the latter are due to couplings with 1p$\\_{3/2}$ or 0f$\\_{7/2}$ neutrons. While the relative energies between the J$^{\\pi}$=1-4$^+$ states are well reproduced with the USDA interaction in the N=17 isotones, a progressive shift in the ground state binding energy (by about 500 keV) is observed between $^{26}$F and $^{30}$Al. This points to a possible change in the proton-neutron 0d$\\_{5/2}$-0d$\\_{3/2}$ effective interaction when moving from stability to the drip line. The presence of J$^{\\pi}$=1-4$^-$ negative parity states around 1.5 MeV as well as of a candidate for a J$^{\\pi}$=5$^-$ state around 2.5 MeV give further support to the col...

  10. Assessment of the release of atomic Na from a burning black liquor droplet using quantitative PLIF

    SciTech Connect (OSTI)

    Saw, Woei L.; Nathan, Graham J. [Centre for Energy Technology, The Environment Institute, School of Mechanical Engineering, The University of Adelaide, SA 5005 (Australia); Ashman, Peter J.; Alwahabi, Zeyad T. [Centre for Energy Technology, The Environment Institute, School of Chemical Engineering, The University of Adelaide, SA 5005 (Australia)

    2009-07-15T23:59:59.000Z

    The quantitative measurement of atomic sodium (Na) release, at high concentration, from a burning black liquor droplet has been demonstrated using a planar laser-induced fluorescence (PLIF) technique, corrected for fluorescence trapping. The local temperature of the particle was measured to be approximately 1700 C, at a height of 10 mm above a flat flame burner. The PLIF technique was used to assess the temporal release of atomic Na from the combustion of black liquor and compare it with the Na concentration in the remaining smelt. A first-order model was made to provide insight using a simple Plug Flow Reactor model based on the independently measured concentration of residual Na in the smelt as a function of time. This model also required the dilution ratio of the combustion products in the flat flame entrained into the plume gas from the black liquor particle to be estimated. The key findings of these studies are: (i) the peak concentration of atomic Na from the combustion of the black liquor droplets is around 1.4 ppm; (ii) very little atomic Na is present during the drying, devolatilisation or char combustion stages; and (iii) the presence of atomic Na during smelt phase dominates over that from the other combustion stages. (author)

  11. Investigation of the Effects of Biodiesel-based Na on Emissions Control Components

    SciTech Connect (OSTI)

    Brookshear, D. William [University of Tennessee, Knoxville (UTK); Nguyen, Ke [University of Tennessee, Knoxville (UTK); Toops, Todd J [ORNL; Bunting, Bruce G [ORNL; Howe, Janet E [ORNL

    2012-01-01T23:59:59.000Z

    A single-cylinder diesel engine was used to investigate the impact of biodiesel-based Na on emissions control components using specially blended 20% biodiesel fuel (B20). The emissions control components investigated were a diesel oxidation catalyst (DOC), a Cu-zeolite-based NH{sub 3}-SCR (selective catalytic reduction) catalyst, and a diesel particulate filter (DPF). Both light-duty vehicle, DOC-SCR-DPF, and heavy-duty vehicle, DOC-DPF-SCR, emissions control configurations were employed. The accelerated Na aging is achieved by introducing elevated Na levels in the fuel, to represent full useful life exposure, and periodically increasing the exhaust temperature to replicate DPF regeneration. To assess the validity of the implemented accelerated Na aging protocol, engine-aged lean NO{sub x} traps (LNTs), DOCs and DPFs are also evaluated. To fully characterize the impact on the catalytic activity the LNT, DOC and SCR catalysts were evaluated using a bench flow reactor. The evaluation of the aged DOC samples and LNT show little to no deactivation as a result of Na contamination. However, the SCR in the light-duty configuration (DOC-SCR-DPF) was severely affected by Na contamination, especially when NO was the only fed NO{sub x} source. In the heavy-duty configuration (DOC-DPF-SCR), no impact is observed in the SCR NO{sub x} reduction activity. Electron probe micro-analysis (EPMA) reveals that Na contamination on the LNT, DOC, and SCR samples is present throughout the length of the catalysts with a higher concentration on the washcoat surface. In both the long-term engine-aged DPF and the accelerated Na-aged DPFs, there is significant Na ash present in the upstream channels; however, in the engine-aged sample lube oil-based ash is the predominant constituent.

  12. Non-oxidative reactions of propane on Zn/Na-ZSM5 Joseph A. Biscardi and Enrique Iglesia*

    E-Print Network [OSTI]

    Iglesia, Enrique

    Non-oxidative reactions of propane on Zn/Na-ZSM5 Joseph A. Biscardi and Enrique Iglesia* Department rates during propane conversion at 773 K on Zn/Na-ZSM5 are about ten times higher than on Zn/H-ZSM5 catalysts with similar Zn content. The total rate of propane conversion is also higher on Zn/Na-ZSM5

  13. MS SELECT na UK Compiled 22.5.2014 10:50:56 by Document Globe 1

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    158 00 Praha 5 Ing. Jií Dlouhý jiri.dlouhy(na)czp.cuni.cz 251 080 353 251 620 441 Centrum pro 220 653 CERGE Politických vz 7 111 21 Praha 1 Ing. Alexandr Krestovský alexandr.krestovsky(na)cerge-ei petr.heger(na)micr.cz 724 086 626 221 008 777 Fakulta humanitních studií U kíze 8 158 00 Praha 5

  14. Spectroscopy of $^{28}$Na: shell evolution toward the drip line

    E-Print Network [OSTI]

    A. Lepailleur; K. Wimmer; A. Mutschler; O. Sorlin; V. Bader; C. Bancroft; D. Barofsky; B. Bastin; T. Baugher; D. Bazin; V. Bildstein; C. Borcea; R. Borcea; B. A. Brown; L. Caceres; A. Gade; L. Gaudefroy; S. Grévy; G. F. Grinyer; H. Iwasaki; E. Khan; T. Kröll; C. Langer; A. Lemasson; O. Llidoo; J. Lloyd; F. Negoita; F. de Oliveira Santos; G. Perdikakis; F. Recchia; T. Redpath; T. Roger; F. Rotaru; S. Saenz; M. -G. Saint-Laurent; D. Smalley; D. Sohler; M. Stanoiu; S. R. Stroberg; J. C. Thomas; M. Vandebrouck; D. Weisshaar; A. Westerberg

    2015-03-30T23:59:59.000Z

    Excited states in $^{28}$Na have been studied using the $\\beta$-decay of implanted $^{28}$Ne ions at GANIL/LISE as well as the in-beam $\\gamma$-ray spectroscopy at the NSCL/S800 facility. New states of positive (J$^{\\pi}$=3,4$^+$) and negative (J$^{\\pi}$=1-5$^-$) parity are proposed. The former arise from the coupling between 0d$\\_{5/2}$ protons and a 0d$\\_{3/2}$ neutron, while the latter are due to couplings with 1p$\\_{3/2}$ or 0f$\\_{7/2}$ neutrons. While the relative energies between the J$^{\\pi}$=1-4$^+$ states are well reproduced with the USDA interaction in the N=17 isotones, a progressive shift in the ground state binding energy (by about 500 keV) is observed between $^{26}$F and $^{30}$Al. This points to a possible change in the proton-neutron 0d$\\_{5/2}$-0d$\\_{3/2}$ effective interaction when moving from stability to the drip line. The presence of J$^{\\pi}$=1-4$^-$ negative parity states around 1.5 MeV as well as of a candidate for a J$^{\\pi}$=5$^-$ state around 2.5 MeV give further support to the collapse of the N=20 gap and to the inversion between the 0f$\\_{7/2}$ and 1p$\\_{3/2}$ levels below Z=12. These features are discussed in the framework of Shell Model and EDF calculations, leading to predicted negative parity states in the low energy spectra of the $^{26}$F and $^{25}$O nuclei.

  15. Course # Course Title Instructor Author (s) Title Edition Publisher ISBN MMAE100 Introduction to the Profession Clack, Gosz, Vural NO TEXT REQUIRED NO TEXT REQUIRED N/A N/A N/A

    E-Print Network [OSTI]

    Heller, Barbara

    or earlier Babcock & Wilcox Company 978-1-603-86021-5 (36th) MMAE426 (2) Nuclear, Fossil Fuel://www.personal.utulsa.edu/~kenneth-weston) 1st Free online N/A MMAE426 (3) Nuclear, Fossil Fuel, and Sustainable Energy Systems Ostrogorsky by Author Website Address TBD MMAE310 Fluid Mechanics with Lab Wark Munson, Young, Okiishi, & Huebach

  16. E-Print Network 3.0 - anp na reducao Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    BY ANP high Na intake volume expansion normal L 2 0 IL- , 11----y7 --, 1 10 100 ANP infusion r-ate (rig... Physiological concentrations of ANP exert a dual regulatory influence...

  17. Search for beta -delayed three-neutron emission frum /sup 31/Na

    E-Print Network [OSTI]

    Détraz, C; Epherre-Rey-Campagnolle, Marcelle; Guillemaud, D; Klapisch, Robert; Langevin, M; Naulin, F; Thibault, C; Touchard, F

    1981-01-01T23:59:59.000Z

    An upper limit P/sub 3n/<5*10/sup -4/ is found for the branching ratio of the beta -delayed three-neutron emission from /sup 31/Na. (5 refs).

  18. Kinetic Study of Heterogeneous Reaction of Deliquesced NaCI Particles...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (1.1 ? Gaseous HNO3 uptake coefficient peaks around a relative humidity of 55%, with ?net 3 on sea salt particles was more rapid than that on the mixture of NaCl and...

  19. Impact of Biodiesel-Based Na on the Selective Catalytic Reduction...

    Broader source: Energy.gov (indexed) [DOE]

    Biodiesel-Based Na on the Selective Catalytic Reduction (SCR) of NO x Using Cu-zeolite D. William Brookshear 1 , Todd J. Toops 2 , William Rohr 1 , Ke Nguyen 1 , and Bruce G....

  20. Seismic Risk Assessment of Port Facilities Ung Jin Na, Samit Ray Chaudhuri

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Seismic Risk Assessment of Port Facilities Ung Jin Na, Samit Ray Chaudhuri Faculty Advisor : Prof Estimation Methodology Applications (in progress) Port of Long Beach · Seismic Risk Assessment, Decision & Vertical movement, Settlement of Apron Seismic Vulnerability - quay Wall

  1. Increase of ionic conductivity in the microporous lithosilicate RUB-29 by Na-ion exchange processes

    SciTech Connect (OSTI)

    Park, S.-H. [Section Crystallography, Earth and Environmental Sciences, Ludwig-Maximilians-Universitaet Muenchen, Theresienstr. 41, 80333 Munich (Germany)], E-mail: sohyun.park@lmu.de; Senyshyn, A. [Material- and Earth Sciences, Technische Universitaet Darmstadt, Petersenstr. 23, 64287 Darmstadt (Germany); Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Lichtenbergstr. 1, 85747 Garching (Germany); Paulmann, C. [Mineralogisch-Petrographisches Institut, Universitaet Hamburg, Grindelallee 48, 20146 Hamburg (Germany); HASYLAB, DESY, Notkestr. 85, 22603 Hamburg (Germany)

    2007-12-15T23:59:59.000Z

    The ionic conductivity in the zeolite-like lithosilicate RUB-29 (Cs{sub 14}Li{sub 24}[Li{sub 18}Si{sub 72}O{sub 172}].14H{sub 2}O [S.-H. Park, J.B. Parise, H. Gies, H. Liu, C.P. Grey, B.H. Toby, J. Am. Chem. Soc. 122 (2000) 11023-11024]) increases via simple ion-exchange processes, in particular when Na cations replace a part of Cs{sup +} and Li{sup +} of the material. The resulting ionic conductivity value of 3.2x10{sup -3} S cm{sup -1} at 885 K is about two orders higher than that for the original material [S.-H. Park, J.B. Parise, M.E. Franke, T. Seydel, C. Paulmann, Micropor. Mesopor. Mater., in print ( (doi:10.1016/j.micromeso.2007.03.040) available online since April 19, 2007)]. The structural basis of a Na{sup +}-exchanged RUB-29 sample (Na-RUB-29) at 673 K could be elucidated by means of neutron powder diffraction. Rietveld refinements confirmed the replacement of Na{sup +} for both parts of Cs and Li cations, agreeing with idealized cell content, Na{sub 8}Cs{sub 8}Li{sub 40}Si{sub 72}O{sub 172}. As a result of the incorporation of Na{sup +} in large pores, the number of Li{sup +} vacancies in dense Li{sub 2}O-layers of the structure could increase. This can be one of the main reasons for the improved conductivity in Na-RUB-29. In addition, mobile Na cations may also contribute to the conductivity in Na-RUB-29 as continuous scattering length densities were found around the sites for Na in difference Fourier map. - Graphical abstract: Li{sub 2}O-layers formed by edge- and corner-sharing LiO{sub 4}- and LiO{sub 3}-moieties in the zeolite-like lithosilicate RUB-29 provide optimal pathways for conducting Li{sup +}. The number of empty Li sites in this layer-like configuration could increase via 'simple' Na{sup +}-exchange processes, promoting fast Li motions.

  2. Supporting information for: Na-doped p-type ZnO , Faxian Xiu2

    E-Print Network [OSTI]

    Yang, Zheng

    S1 Supporting information for: Na-doped p-type ZnO microwires Wei Liu1* , Faxian Xiu2 , Ke Sun1 flow was switched to argon followed by cooling to room temperature. After the growth, high-density Zn distribution of the Na Doped ZnO microwire 1.3 EDX line scans spectra #12;S3 Figure S3 a) a typical TEM image

  3. ISSN 0103-1538 4231 MONITORAMENTO DOS FOCOS DE CALOR NA REGIO SUL DO BRASIL

    E-Print Network [OSTI]

    ISSN 0103-1538 4231 MONITORAMENTO DOS FOCOS DE CALOR NA REGI�O SUL DO BRASIL Instituto Nacional de monitorar a distribuição dos focos de calor na região sul do Brasil, entre os anos de 2003 a 2007, através, Geotecnologias, Região Sul do Brasil. RESUMEN Las quemadas pueden ser causadas de forma natural o por influencia

  4. SISTEMATIZAO DE OCORRNCIAS DE DESASTRES NATURAIS NA REGIO SUL DO BRASIL EM 2011

    E-Print Network [OSTI]

    Página1 SISTEMATIZA��O DE OCORR�NCIAS DE DESASTRES NATURAIS NA REGI�O SUL DO BRASIL EM 2011 Janete Aplicação de Geotecnologias para Desastres Naturais e Eventos Extremos para a Região Sul do Brasil e forma, a pesquisa tem como objetivo analisar os eventos de desastres naturais na Região Sul do Brasil em

  5. Portugal lidera consrcio envolvido na produo de "energia limpa, segura e abundante"

    E-Print Network [OSTI]

    Instituto de Sistemas e Robotica

    Portugal lidera consórcio envolvido na produção de "energia limpa, segura e abundante" Autor: Data) - A produção de eletricidade a partir de fusão nuclear, considerada uma fonte de energia limpa, abundante e lidera consórcio envolvido na produção de "energia limpa, seg... http://sicnoticias.sapo.pt/Lusa/2013

  6. Band gap engineering for graphene by using Na{sup +} ions

    SciTech Connect (OSTI)

    Sung, S. J.; Lee, P. R.; Kim, J. G.; Ryu, M. T.; Park, H. M.; Chung, J. W., E-mail: jwc@postech.ac.kr [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of)

    2014-08-25T23:59:59.000Z

    Despite the noble electronic properties of graphene, its industrial application has been hindered mainly by the absence of a stable means of producing a band gap at the Dirac point (DP). We report a new route to open a band gap (E{sub g}) at DP in a controlled way by depositing positively charged Na{sup +} ions on single layer graphene formed on 6H-SiC(0001) surface. The doping of low energy Na{sup +} ions is found to deplete the ?* band of graphene above the DP, and simultaneously shift the DP downward away from Fermi energy indicating the opening of E{sub g}. The band gap increases with increasing Na{sup +} coverage with a maximum E{sub g}?0.70?eV. Our core-level data, C 1s, Na 2p, and Si 2p, consistently suggest that Na{sup +} ions do not intercalate through graphene, but produce a significant charge asymmetry among the carbon atoms of graphene to cause the opening of a band gap. We thus provide a reliable way of producing and tuning the band gap of graphene by using Na{sup +} ions, which may play a vital role in utilizing graphene in future nano-electronic devices.

  7. Stabilisation of Na,K-ATPase structure by the cardiotonic steroid ouabain

    SciTech Connect (OSTI)

    Miles, Andrew J. [Institute of Structural and Molecular Biology, Birkbeck College, University of London, London WC1E 7HX (United Kingdom)] [Institute of Structural and Molecular Biology, Birkbeck College, University of London, London WC1E 7HX (United Kingdom); Fedosova, Natalya U. [Department of Biomedicine, Aarhus University, DK-8000 Aarhus (Denmark)] [Department of Biomedicine, Aarhus University, DK-8000 Aarhus (Denmark); Hoffmann, Søren V. [ISA, Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus (Denmark)] [ISA, Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus (Denmark); Wallace, B.A. [Institute of Structural and Molecular Biology, Birkbeck College, University of London, London WC1E 7HX (United Kingdom)] [Institute of Structural and Molecular Biology, Birkbeck College, University of London, London WC1E 7HX (United Kingdom); Esmann, Mikael, E-mail: me@biophys.au.dk [Department of Biomedicine, Aarhus University, DK-8000 Aarhus (Denmark)] [Department of Biomedicine, Aarhus University, DK-8000 Aarhus (Denmark)

    2013-05-31T23:59:59.000Z

    Highlights: •Ouabain binding to pig and shark Na,K-ATPase enhances thermal stability. •Ouabain stabilises both membrane-bound and solubilised Na,K-ATPase. •Synchrotron radiation circular dichroism is used for structure determination. •Secondary structure in general is not affected by ouabain binding. •Stabilisation is due to re-arrangement of tertiary structure. -- Abstract: Cardiotonic steroids such as ouabain bind with high affinity to the membrane-bound cation-transporting P-type Na,K-ATPase, leading to complete inhibition of the enzyme. Using synchrotron radiation circular dichroism spectroscopy we show that the enzyme-ouabain complex is less susceptible to thermal denaturation (unfolding) than the ouabain-free enzyme, and this protection is observed with Na,K-ATPase purified from pig kidney as well as from shark rectal glands. It is also shown that detergent-solubilised preparations of Na,K-ATPase are stabilised by ouabain, which could account for the successful crystallisation of Na,K-ATPase in the ouabain-bound form. The secondary structure is not significantly affected by the binding of ouabain. Ouabain appears however, to induce a reorganization of the tertiary structure towards a more compact protein structure which is less prone to unfolding; recent crystal structures of the two enzymes are consistent with this interpretation. These circular dichroism spectroscopic studies in solution therefore provide complementary information to that provided by crystallography.

  8. Magnetic structure of the low-dimensional magnet NaCu{sub 2}O{sub 2}: {sup 63,65}Cu and {sup 23}Na NMR studies

    SciTech Connect (OSTI)

    Sadykov, A. F., E-mail: sadykov@imp.uran.ru; Gerashchenko, A. P.; Piskunov, Yu. V.; Ogloblichev, V. V.; Smol’nikov, A. G.; Verkhovskii, S. V.; Buzlukov, A. L.; Arapova, I. Yu. [Russian Academy of Sciences, Institute of Metal Physics, Ural Branch (Russian Federation); Furukawa, Y. [Iowa State University, Ames Laboratory (United States); Yakubovskii, A. Yu. [National Research Centre Kurchatov Institute (Russian Federation); Bush, A. A. [Moscow State Technical University of Radio Engineering, Electronics, and Automation (Russian Federation)

    2014-11-15T23:59:59.000Z

    The magnetic structure of a quasi-one-dimensional frustrated NaCu{sub 2}O{sub 2} magnet single crystal is studied by NMR. The spatial orientation of the planar spin spirals in the copper-oxygen Cu{sup 2+}-O chains is determined, and its evolution as a function of the applied magnetic field direction is analyzed.

  9. * Corresponding author. Tel.: #44-01223-332650; fax: #44-01223-332662. E-mail address: na#@eng.cam.ac.uk (N.A. Fleck)

    E-Print Network [OSTI]

    Fleck, Norman A.

    compressive behaviour of aluminium alloy foams V.S. Deshpande, N.A. Fleck* Cambridge University Engineering and materials chosen for study Foamed aluminium alloys are ultra-light solids which absorb considerable energy. Alcan foam (an aluminium alloy foam) was independent of applied strain rate in the range 10\\}10 s\\ (the

  10. Ordered and disordered polymorphs of Na(Ni2/3Sb1/3)O?: Honeycomb-ordered cathodes for Na-ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ma, Jeffrey; Wu, Lijun; Bo, Shou -Hang; Khalifah, Peter G.; Grey, Clare P.; Zhu, Yimei

    2015-04-14T23:59:59.000Z

    Na-ion batteries are appealing alternatives to Li-ion battery systems for large-scale energy storage applications in which elemental cost and abundance are important. Although it is difficult to find Na-ion batteries which achieve substantial specific capacities at voltages above 3 V (vs Na?/Na), the honeycomb-layered compound Na(Ni2/3Sb1/3)O? can deliver up to 130 mAh/g of capacity at voltages above 3 V with this capacity concentrated in plateaus at 3.27 and 3.64 V. Comprehensive crystallographic studies have been carried out in order to understand the role of disorder in this system which can be prepared in both “disordered” and “ordered” forms, depending onmore »the synthesis conditions. The average structure of Na(Ni2/3Sb1/3)O? is always found to adopt an O3-type stacking sequence, though different structures for the disordered (R3?m, #166, a = b = 3.06253(3) Å and c = 16.05192(7) Å) and ordered variants (C2/m, #12, a = 5.30458(1) Å, b = 9.18432(1) Å, c = 5.62742(1) Å and ? = 108.2797(2)°) are demonstrated through the combined Rietveld refinement of synchrotron X-ray and time-of-flight neutron powder diffraction data. However, pair distribution function studies find that the local structure of disordered Na(Ni2/3Sb1/3)O? is more correctly described using the honeycomb-ordered structural model, and solid state NMR studies confirm that the well-developed honeycomb ordering of Ni and Sb cations within the transition metal layers is indistinguishable from that of the ordered phase. The disorder is instead found to mainly occur perpendicular to the honeycomb layers with an observed coherence length of not much more than 1 nm seen in electron diffraction studies. When the Na environment is probed through ²³Na solid state NMR, no evidence is found for prismatic Na environments, and a bulk diffraction analysis finds no evidence of conventional stacking faults. The lack of long range coherence is instead attributed to disorder among the three possible choices for distributing Ni and Sb cations into a honeycomb lattice in each transition metal layer. It is observed that the full theoretical discharge capacity expected for a Ni³?/²? redox couple (133 mAh/g) can be achieved for the ordered variant but not for the disordered variant (~110 mAh/g). The first 3.27 V plateau during charging is found to be associated with a two-phase O3 ? P3 structural transition, with the P3 stacking sequence persisting throughout all further stages of desodiation.« less

  11. Stimulation of Na{sup +}/K{sup +} ATPase activity and Na{sup +} coupled glucose transport by {beta}-catenin

    SciTech Connect (OSTI)

    Sopjani, Mentor [Department of Physiology, University of Tuebingen (Germany) [Department of Physiology, University of Tuebingen (Germany); Department of Chemistry, University of Prishtina, Kosovo (Country Unknown); Alesutan, Ioana; Wilmes, Jan [Department of Physiology, University of Tuebingen (Germany)] [Department of Physiology, University of Tuebingen (Germany); Dermaku-Sopjani, Miribane [Department of Physiology, University of Tuebingen (Germany) [Department of Physiology, University of Tuebingen (Germany); Faculty of Medicine, University of Prishtina, Kosovo (Country Unknown); Lam, Rebecca S. [Department of Physiology, University of Tuebingen (Germany) [Department of Physiology, University of Tuebingen (Germany); Department of Molecular Neurogenetics, Max Planck Institute of Biophysics, Frankfurt/Main (Germany); Koutsouki, Evgenia [Department of Physiology, University of Tuebingen (Germany)] [Department of Physiology, University of Tuebingen (Germany); Jakupi, Muharrem [Faculty of Medicine, University of Prishtina, Kosovo (Country Unknown)] [Faculty of Medicine, University of Prishtina, Kosovo (Country Unknown); Foeller, Michael [Department of Physiology, University of Tuebingen (Germany)] [Department of Physiology, University of Tuebingen (Germany); Lang, Florian, E-mail: florian.lang@uni-tuebingen.de [Department of Physiology, University of Tuebingen (Germany)] [Department of Physiology, University of Tuebingen (Germany)

    2010-11-19T23:59:59.000Z

    Research highlights: {yields} The oncogenic transcription factor {beta}-catenin stimulates the Na{sup +}/K{sup +}-ATPase. {yields} {beta}-Catenin stimulates SGLT1 dependent Na{sup +}, glucose cotransport. {yields} The effects are independent of transcription. {yields} {beta}-Catenin sensitive transport may contribute to properties of proliferating cells. -- Abstract: {beta}-Catenin is a multifunctional protein stimulating as oncogenic transcription factor several genes important for cell proliferation. {beta}-Catenin-regulated genes include the serum- and glucocorticoid-inducible kinase SGK1, which is known to stimulate a variety of transport systems. The present study explored the possibility that {beta}-catenin influences membrane transport. To this end, {beta}-catenin was expressed in Xenopus oocytes with or without SGLT1 and electrogenic transport determined by dual electrode voltage clamp. As a result, expression of {beta}-catenin significantly enhanced the ouabain-sensitive current of the endogeneous Na{sup +}/K{sup +}-ATPase. Inhibition of vesicle trafficking by brefeldin A revealed that the stimulatory effect of {beta}-catenin on the endogenous Na{sup +}/K{sup +}-ATPase was not due to enhanced stability of the pump protein in the cell membrane. Expression of {beta}-catenin further enhanced glucose-induced current (Ig) in SGLT1-expressing oocytes. In the absence of SGLT1 Ig was negligible irrespective of {beta}-catenin expression. The stimulating effect of {beta}-catenin on both Na{sup +}/K{sup +} ATPase and SGLT1 activity was observed even in the presence of actinomycin D, an inhibitor of transcription. The experiments disclose a completely novel function of {beta}-catenin, i.e. the regulation of transport.

  12. Search for compounds of the NaBaR(BO{sub 3}){sub 2} family (R = La, Nd, Gd, and Yb) and the new NaBaYb(BO{sub 3}){sub 2} orthoborate

    SciTech Connect (OSTI)

    Svetlyakova, T. N., E-mail: svetlyakovatn@gmail.com; Kokh, A. E.; Kononova, N. G. [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation); Fedorov, P. P. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)] [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation); Rashchenko, S. V. [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation); Maillard, A. [University of Metz and Supelec, Laboratoire Materiaux Optiques, Photonique et Systemes (France)] [University of Metz and Supelec, Laboratoire Materiaux Optiques, Photonique et Systemes (France)

    2013-01-15T23:59:59.000Z

    A search for compounds of the NaBaR(BO{sub 3}){sub 2} composition (where R = La{sup 3+}, Nd{sup 3+}, Gd{sup 3+}, or Yb{sup 3+}) is performed by solid state synthesis and spontaneous crystallization. A new compound, NaBaYb(BO{sub 3}){sub 2}, is found in this series. It crystallizes in space group R3{sup -} and belongs to the family of sublayer complex orthoborates with isolated BO{sub 3} groups NaBaR(BO{sub 3}){sub 2} (R = Y, Sc, and Yb). Theoretical X-ray powder diffraction patterns of NaBaY(BO{sub 3}){sub 2}, NaBaSc(BO{sub 3}){sub 2}, and NaBaYb(BO{sub 3}){sub 2} are calculated based on single-crystal data.

  13. THE Na 8200 Angstrom-Sign DOUBLET AS AN AGE INDICATOR IN LOW-MASS STARS

    SciTech Connect (OSTI)

    Schlieder, Joshua E.; Simon, Michal [Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794 (United States); Lepine, Sebastien; Rice, Emily [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 (United States); Fielding, Drummond [Department of Physics and Astronomy, Johns Hopkins University, 366 Bloomberg Center, 3400 North Charles Street, Baltimore, MD 21218 (United States); Tomasino, Rachael, E-mail: michal.simon@stonybrook.edu, E-mail: schlieder@mpia-hd.mpg.de, E-mail: lepine@amnh.org, E-mail: erice@amnh.org, E-mail: dfieldi1@jhu.edu, E-mail: tomas1r@cmich.edu [Department of Physics, Central Michigan University, Mount Pleasant, MI 48859 (United States)

    2012-05-15T23:59:59.000Z

    We investigate the use of the gravity sensitive neutral sodium (Na I) doublet at 8183 Angstrom-Sign and 8195 Angstrom-Sign (Na 8200 Angstrom-Sign doublet) as an age indicator for M dwarfs. We measured the Na doublet equivalent width (EW) in giants, old dwarfs, young dwarfs, and candidate members of the {beta} Pic moving group using medium-resolution spectra. Our Na 8200 A doublet EW analysis shows that the feature is useful as an approximate age indicator in M-type dwarfs with (V - K{sub s}) {>=} 5.0, reliably distinguishing stars older and younger than 100 Myr. A simple derivation of the dependence of the Na EW on temperature and gravity supports the observational results. An analysis of the effects of metallicity shows that this youth indicator is best used on samples with similar metallicity. The age estimation technique presented here becomes useful in a mass regime where traditional youth indicators are increasingly less reliable, is applicable to other alkali lines, and will help identify new low-mass members in other young clusters and associations.

  14. The synthesis and structural characterization of Na[sub 3]WO[sub 3]N

    SciTech Connect (OSTI)

    Elder, S.H. (Cornell Univ., Ithaca, NY (United States) Institut des MJateriaux de Nantes, Nantes (France)); DiSalvo, F.J. (Cornell Univ., Ithaca, NY (United States)); Parise, J.B. (State Univ. of New York at Stony Brook, Stony Brook, NY (United States)); Hriljac, J.A. (Brookhaven National Lab., Upton, NY (United States)); Richardson, J.W. Jr. (Argonne National Lab., IL (United States))

    1994-01-01T23:59:59.000Z

    The authors report the discovery of a new ternary oxynitride, Na[sub 3]WO[sub 3]N. Na[sub 3]WO[sub 3]N is synthesized by exposing a eutectic melt consisting of 1/2Na[sub 2]O:1Na[sub 2]WO[sub 4] to a flow of ammonia gas at 695[degrees]C. The compound crystallizes in the acentric space group Pmn2[sub 1] with a = 7.2481(3) [angstrom], b = 6.2728(3) [angstrom], and c = 56493(2) [angstrom]. The structure was determined from synchrotron X-ray powder diffraction data and refined using the Rietveld analysis on neutron powder diffraction data. It is isostructural to the low temperature form of Li[sub 3]PO[sub 4] which can be derived from an ordered wurtzite structure-type with all the atoms having tetrahedral coordination. Alternatively, the structure can be described as being [open quotes]salt-like[close quotes] consisting of isolated (WO[sub 3]N)[sup [minus]3] tetrahedral polyanions separated by Na[sup +].

  15. The chemical instability of Na{sub 2}IrO{sub 3} in air

    SciTech Connect (OSTI)

    Krizan, J.W., E-mail: jkrizan@princeton.edu; Roudebush, J.H.; Fox, G.M.; Cava, R.J.

    2014-04-01T23:59:59.000Z

    Highlights: • Na{sub 2}IrO{sub 3} decomposes rapidly in laboratory air. • The decomposition requires the simultaneous presence of CO{sub 2} and H{sub 2}O. • Decomposition results in a dramatic change in the magnetic properties. • Second 5 K feature in magnetic susceptibility not previously reported. - Abstract: We report that Na{sub 2}IrO{sub 3}, which has a layered honeycomb iridium oxide sublattice interleaved by Na planes, decomposes in laboratory air while maintaining the same basic crystal structure. The decomposition reaction was monitored by time-dependent powder X-ray diffraction under different ambient atmospheres, through which it was determined that it occurs only in the simultaneous presence of both CO{sub 2} and H{sub 2}O. A hydrated sodium carbonate is the primary decomposition product along with altered Na{sub 2}IrO{sub 3}. The diffraction signature of the altered Na{sub 2}IrO{sub 3} is quite similar to that of the pristine material, which makes the detection of decomposition difficult in a sample handled under ordinary laboratory conditions. The decomposed samples show a significantly decreased magnetic susceptibility and the disappearance of the low temperature antiferromagnetic transition considered to be characteristic of the phase. Samples that have never been exposed to air after synthesis display a previously unreported magnetic transition at 5 K.

  16. Determination of Na submonolayer adsorption site on Cu(111) by low-energy ion blocking

    SciTech Connect (OSTI)

    Zhang, R.; Makarenko, B. [Department of Chemistry, University of Houston, Houston, Texas 77204 (United States); Bahrim, B. [Department of Chemistry and Physics, Lamar University, Beaumont, Texas 77710 (United States); Rabalais, J. W. [Department of Chemistry, University of Houston, Houston, Texas 77204 (United States); Department of Chemistry and Physics, Lamar University, Beaumont, Texas 77710 (United States)

    2007-09-15T23:59:59.000Z

    The structure of a submonolayer coverage of sodium adsorbed on a Cu(111) surface at room temperature has been investigated using time-of-flight scattering and recoiling spectrometry. The effect of the adsorbed Na atoms on the angular distribution of scattered 2 keV H{sup +} ions is analyzed by molecular dynamics and scattering and recoiling imaging code simulations. It is shown that at a coverage {theta}=0.25 monolayer, Na atoms preferentially populate the fcc threefold surface sites with a height of 2.7{+-}0.1 A above the first-layer Cu atoms. At a lower coverage of {theta}=0.10 ML, there is no adsorption site preference for the Na atoms on the Cu(111) surface.

  17. Decontamination and decommissioning plan for processing contaminated NaK at the INEL

    SciTech Connect (OSTI)

    LaRue, D.M.; Dolenc, M.R.

    1986-09-01T23:59:59.000Z

    This decontamination and decommissioning (D D) plan describes the work elements and project management plan for processing four containers of contaminated sodium/potassium (NaK) and returning the Army Reentry Vehicle Facility Site (ARVFS) to a reusable condition. The document reflects the management plan for this project before finalizing the conceptual design and preliminary prototype tests of the reaction kinetics. As a result, the safety, environmental, and accident analyses are addressed as preliminary assessments before completion at a later date. ARVFS contains an earth-covered bunker, a cylindrical test pit and metal shed, and a cable trench connecting the two items. The bunker currently stores the four containers of NaK from the meltdown of the EBR-1 Mark II core. The D D project addressed in this plan involves processing the contaminated NaK and returning the ARVFS to potential reuse after cleanup.

  18. Decontamination and decommissioning plan for processing contaminated NaK at the INEL

    SciTech Connect (OSTI)

    LaRue, D.M.; Dolenc, M.R.

    1986-09-01T23:59:59.000Z

    This decontamination and decommissioning (D&D) plan describes the work elements and project management plan for processing four containers of contaminated sodium/potassium (NaK) and returning the Army Reentry Vehicle Facility Site (ARVFS) to a reusable condition. The document reflects the management plan for this project before finalizing the conceptual design and preliminary prototype tests of the reaction kinetics. As a result, the safety, environmental, and accident analyses are addressed as preliminary assessments before completion at a later date. ARVFS contains an earth-covered bunker, a cylindrical test pit and metal shed, and a cable trench connecting the two items. The bunker currently stores the four containers of NaK from the meltdown of the EBR-1 Mark II core. The D&D project addressed in this plan involves processing the contaminated NaK and returning the ARVFS to potential reuse after cleanup.

  19. Metal-insulator transition in Na{sub x}WO{sub 3}: Photoemission spectromicroscopy study

    SciTech Connect (OSTI)

    Paul, Sanhita, E-mail: raj@iiserkol.ac.in; Ghosh, Anirudha, E-mail: raj@iiserkol.ac.in; Raj, Satyabrata, E-mail: raj@iiserkol.ac.in [Department of Physical Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Nadia -741252, West Bengal (India)

    2014-04-24T23:59:59.000Z

    We have investigated the validity of percolation model, which is quite often invoked to explain the metal-insulator transition in sodium tungsten bronzes, Na{sub x}WO{sub 3} by photoelectron spectromicroscopy. The spatially resolved direct spectromicroscopic probing on both the insulating and metallic phases of high quality single crystals of Na{sub x}WO{sub 3} reveals the absence of any microscopic inhomogeneities embedded in the system within the experimental limit. Neither any metallic domains in the insulating host nor any insulating domains in the metallic host have been found to support the validity of percolation model to explain the metal-insulator transition in Na{sub x}WO{sub 3}.

  20. Thermodynamic and kinetic analyses of the CO2 chemisorption mechanism on Na2TiO3: Experimental and theoretical evidences

    SciTech Connect (OSTI)

    Duan, Yuhua [U.S. DOE

    2014-01-01T23:59:59.000Z

    ABSTRACT: Sodium metatitanate (Na2TiO3) was successfully synthesized via a solid-state reaction. The Na2TiO3 structure and microstructure were characterized using X-ray diffraction, scanning and transmission electron microscopy, and N2 adsorption. Then, the CO2 chemisorption mechanism on Na2TiO3 was systematically analyzed to determine the influence of temperature. The CO2 chemisorption capacity of Na2TiO3 was evaluated both dynamically and isothermally, and the products were reanalyzed to elucidate the Na2TiO3?CO2 reaction mechanism. Different chemical species (Na2CO3, Na2O, and Na4Ti5O12 or Na16Ti10O28) were identified during the CO2 capture process in Na2TiO3. In addition, some CO2 chemisorption kinetic parameters were determined. The ?H? was found to be 140.9 kJ/mol, to the Na2TiO3?CO2 system, between 600 and 780 °C. Results evidenced that CO2 chemisorption on Na2TiO3 highly depends on the reaction temperature. Furthermore, the experiments were theoretically supported by different thermodynamic calculations. The calculated thermodynamic properties of CO2 capture reactions by (Na2TiO3, Na4Ti5O12, and Na16Ti10O28) sodium titanates were fully investigated.

  1. Modeling the diffusion of Na+ in compacted water-saturated Na-bentonite as a function of pore water ionic strength

    SciTech Connect (OSTI)

    Bourg, I.C.; Sposito, G.; Bourg, A.C.M.

    2008-08-15T23:59:59.000Z

    Assessments of bentonite barrier performance in waste management scenarios require an accurate description of the diffusion of water and solutes through the barrier. A two-compartment macropore/nanopore model (on which smectite interlayer nanopores are treated as a distinct compartment of the overall pore space) was applied to describe the diffusion of {sup 22}Na{sup +} in compacted, water-saturated Na-bentonites and then compared with the well-known surface diffusion model. The two-compartment model successfully predicted the observed weak ionic strength dependence of the apparent diffusion coefficient (D{sub a}) of Na{sup +}, whereas the surface diffusion model did not, thus confirming previous research indicating the strong influence of interlayer nanopores on the properties of smectite clay barriers. Since bentonite mechanical properties and pore water chemistry have been described successfully with two-compartment models, the results in the present study represent an important contribution toward the construction of a comprehensive two-compartment model of compacted bentonite barriers.

  2. Zdost o upustn od odborn pijmac zkousky do navazujcho magisterskho studia na MFF UK v Praze

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    pro akademický rok 2015/16 (zakrouzkujte dvod, který dokládáte a vyplte potebné údaje): dle bodu 1 absolventy nebo studenty posledního rocníku bakaláského studijního oboru Obecná fyzika 1701R026." dle bodu 2 oboru Fyzika zamená na vzdlávání 7504R183." dle bodu 3) ,,Od pijímací zkousky na magisterské studium

  3. POST-OPERATIONAL TREATMENT OF RESIDUAL NA COOLLANT IN EBR-2 USING CARBONATION

    SciTech Connect (OSTI)

    Sherman, S.; Knight, C.

    2011-03-08T23:59:59.000Z

    At the end of 2002, the Experimental Breeder Reactor Two (EBR-II) facility became a U.S. Resource Conservation and Recovery Act (RCRA) permitted site, and the RCRA permit1 compelled further treatment of the residual sodium in order to convert it into a less reactive chemical form and remove the by-products from the facility, so that a state of RCRA 'closure' for the facility may be achieved (42 U.S.C. 6901-6992k, 2002). In response to this regulatory driver, and in recognition of project budgetary and safety constraints, it was decided to treat the residual sodium in the EBR-II primary and secondary sodium systems using a process known as 'carbonation.' In early EBR-II post-operation documentation, this process is also called 'passivation.' In the carbonation process (Sherman and Henslee, 2005), the system containing residual sodium is flushed with humidified carbon dioxide (CO{sub 2}). The water vapor in the flush gas reacts with residual sodium to form sodium hydroxide (NaOH), and the CO{sub 2} in the flush gas reacts with the newly formed NaOH to make sodium bicarbonate (NaHCO{sub 3}). Hydrogen gas (H{sub 2}) is produced as a by-product. The chemical reactions occur at the exposed surface of the residual sodium. The NaHCO{sub 3} layer that forms is porous, and humidified carbon dioxide can penetrate the NaHCO{sub 3} layer to continue reacting residual sodium underneath. The rate of reaction is controlled by the thickness of the NaHCO{sub 3} surface layer, the moisture input rate, and the residual sodium exposed surface area. At the end of carbonation, approximately 780 liters of residual sodium in the EBR-II primary tank ({approx}70% of original inventory), and just under 190 liters of residual sodium in the EBR-II secondary sodium system ({approx}50% of original inventory), were converted into NaHCO{sub 3}. No bare surfaces of residual sodium remained after treatment, and all remaining residual sodium deposits are covered by a layer of NaHCO{sub 3}. From a safety standpoint, the inventory of residual sodium in these systems was greatly reduced by using the carbonation process. From a regulatory standpoint, the process was not able to achieve deactivation of all residual sodium, and other more aggressive measures will be needed if the remaining residual sodium must also be deactivated to meet the requirements of the existing environmental permit. This chapter provides a project history and technical summary of the carbonation of EBR-II residual sodium. Options for future treatment are also discussed.

  4. The effect of NaCl salinity on bell pepper photosynthesis

    E-Print Network [OSTI]

    Bethke, Paul Carl

    1989-01-01T23:59:59.000Z

    annuum cv. Tambel-2, were grown in hydroponics and then salinized to 0, 50, 100 or 150 mM NaC1. Photosynthetic rates of individual leaves were measured on several occasions during the salinization period (usually 10 to 14 d) with an ' open' gas...-exchange system. These rates were reduced by NaC1 concentrations of 100 mM or higher. Stomatal conductance was concurrently reduced, but nonstomatal effects seem to be primarily responsible for decreases in photosynthesis. The correlation between either leaf...

  5. For-Ghaeltacht n Gaeltacht Fhoril? Mein Shisialta agus Forbairt na Gaeilge i Meirice Thuaidh

    E-Print Network [OSTI]

    Scannell, Kevin Patrick

    . Gan an mhais chriticiúil seo, is fíordheacair clann a thógáil le Gaeilge1, agus dá bharr sin is daoine seo, gur rud dona é seo. Tá a fhios agam go bhfuil roinnt daoine i Meiriceá Thuaidh a bhfuil Gaeilge pobal na Gaeltachta in �irinn. Ceann de na fáthanna atá leis seo ná an easpa cainteoirí dúchais i

  6. NA-ASC-500-13 Issue 26 ASC eNews Quarterly Newsletter

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTubahq.na.govSecurityMaintaining theSan Jose-San| NationalNA-ASC-500-13

  7. The Impact of Creating Civil Unions for Same-Sex Couples on Delaware’s Budget

    E-Print Network [OSTI]

    Herman, Jody L.; Konnoth, Craig J.; Badgett, M.V. Lee

    2011-01-01T23:59:59.000Z

    Marriage on California's Budget, 16 S TAN . L. & P OL . RSex Couples on Delaware’s Budget Jody Herman Craig Konnothnet expenditures in the state budget by a small average of $

  8. Synthesis of Li{sub (x)}Na{sub (2-x)}Mn{sub 2}S{sub 3} and LiNaMnS{sub 2} through redox-induced ion exchange reactions

    SciTech Connect (OSTI)

    Luthy, Joshua A.; Goodman, Phillip L. [Department of Chemistry and Biochemistry, Texas State University-San Marcos, 601 University Drive, San Marcos, TX 78666 (United States); Martin, Benjamin R. [Department of Chemistry and Biochemistry, Texas State University-San Marcos, 601 University Drive, San Marcos, TX 78666 (United States)], E-mail: bmartin@txstate.edu

    2009-03-15T23:59:59.000Z

    Na{sub 2}Mn{sub 2}S{sub 3} was oxidatively deintercalated using iodine in acetonitrile to yield Na{sub 1.3}Mn{sub 2}S{sub 3}, with lattice constants nearly identical to that of the reactant. Lithium was then reductively intercalated into the oxidized product to yield Li{sub 0.7}Na{sub 1.3}Mn{sub 2}S{sub 3}. When heated, this metastable compound decomposed to form a new crystalline compound, LiNaMnS{sub 2}, along with MnS and residual Na{sub 2}Mn{sub 2}S{sub 3}. Single crystal X-ray diffraction structural analysis of LiNaMnS{sub 2} revealed that this compound crystallizes in P-3m1 with cell parameters a=4.0479(6) A, c=6.7759(14) A, V=96.15(3) A{sup 3} (Z=1, wR2=0.0367) in the NaLiCdS{sub 2} structure-type. - Graphical abstract: Structure of LiNaMnS{sub 2}. Li and Mn are statistically distributed in edge-shared tetrahedral environments linked into infinite planes. Sodium ions occupy interlayer sites.

  9. Qualifying RPS State Export Markets (Delaware)

    Broader source: Energy.gov [DOE]

    This entry lists the states with Renewable Portfolio Standard (RPS) policies that accept generation located in Delaware as eligible sources towards their RPS targets or goals. For specific...

  10. Tax-Exempt Bond Financing (Delaware)

    Broader source: Energy.gov [DOE]

    The Delaware Economic Development Authority provides tax-exempt bond financing for financial assistance to new or expanding businesses, governmental units and certain organizations that are exempt...

  11. Design, Fabrication and Integration of a NaK-Cooled Circuit

    SciTech Connect (OSTI)

    Garber, Anne; Godfroy, Thomas [NASA Marshall Space Flight Center, MSFC, AL 35824 (United States)

    2006-07-01T23:59:59.000Z

    The Early Flight Fission Test Facilities (EFF-TF) team has been tasked by the NASA Marshall Space Flight Center Nuclear Systems Office to design, fabricate, and test an actively pumped alkali metal flow circuit. The system, which was originally designed for use with a eutectic mixture of sodium potassium (NaK), was redesigned for use with lithium. Due to a shift in focus, it is once again being prepared for use with NaK. Changes made to the actively pumped, high temperature circuit include the replacement of the expansion reservoir, addition of remotely operated valves, and modification of the support table. Basic circuit components include: reactor segment, NaK to gas heat exchanger, electromagnetic (EM) liquid metal pump, load/drain reservoir, expansion reservoir, instrumentation, and a spill reservoir. A 37-pin partial-array core (pin and flow path dimensions are the same as those in a full design) was selected for fabrication and test. This paper summarizes the integration and preparations for the fill of the pumped NaK circuit. (authors)

  12. Grant Title: KAUFFMAN DISSERTATION FELLOWSHIP PROGRAM Funding Opportunity Number: N/A

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: KAUFFMAN DISSERTATION FELLOWSHIP PROGRAM Funding Opportunity Number: N/A Agency: The Kauffman Dissertation Fellowship Program is an annual competitive program that awards up to fifteen Dissertation Fellowship grants of $20,000 each to Ph.D., D.B.A., or other doctoral students at accredited U

  13. Grant Title: MELLON/ACLS DISSERTATION COMPLETION FELLOWSHIPS Funding Opportunity Number: N/A

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: MELLON/ACLS DISSERTATION COMPLETION FELLOWSHIPS Funding Opportunity Number: N/A Agency, and their principal dissertation supervisor holds an appointment in a humanities field or related social science field.); (b) have all requirements for the Ph.D. except the dissertation completed before beginning fellowship

  14. Grant Title: APA DISSERTATION RESEARCH AWARD PROGRAM Funding Opportunity Number: N/A

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: APA DISSERTATION RESEARCH AWARD PROGRAM Funding Opportunity Number: N/A Agency/Department: American Psychological Association. Area of Research: Dissertation research in psychology. Release-40 grants of $1000 each, along with several larger grants of up to $5000 to students whose dissertation

  15. Grant Title: AMERICAN HONDA FOUNDATION GRANTS Funding Opportunity Number: N/A

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: AMERICAN HONDA FOUNDATION GRANTS Funding Opportunity Number: N/A Agency/Department: American Honda Foundation. Area of Research: Youth and scientific education. Release and Expiration: N list of eligible applicants. Summary: The American Honda Foundation engages in grant making

  16. Departamento de Electronica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na

    E-Print Network [OSTI]

    Fraguela, Basilio B.

    Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru 2004­ p.1/29 #12;Departamento de Electr´onica e Sistemas Grupo de Arquitectura de Computadores´onica e Sistemas Grupo de Arquitectura de Computadores Universidade da Coru~na AC LUCEH Curriculum Vitae

  17. Nonlinear Analysis 65 (2006) 17051724 www.elsevier.com/locate/na

    E-Print Network [OSTI]

    Pola, Giordano

    2006-01-01T23:59:59.000Z

    extensively pursued (see [1,2,7]). These models are required to achieve better control accuracy since for the control strategies. Traditional techniques used mean-value models (see [4] for a comprehensive listNonlinear Analysis 65 (2006) 1705­1724 www.elsevier.com/locate/na Digital idle speed control

  18. Viability Kernel for Ecosystem Management Models Eladio Oca~na Anaya

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Viability Kernel for Ecosystem Management Models Eladio Oca~na Anaya Michel De Lara Ricardo task in general. We study the viability of nonlinear generic ecosystem models under preservation in the Peruvian upwelling ecosystem. Key words: control theory; state constraints; viability; predator

  19. Super-Elastic and Plastic Shock Waves Generated by Lasers N.A. Inogamov a,1

    E-Print Network [OSTI]

    Fominov, Yakov

    Super-Elastic and Plastic Shock Waves Generated by Lasers N.A. Inogamov a,1 , V.V. Zhakhovsky b,3 fortov@ihed.ras.ru, i oleynik@usf.edu Keywords: Femtosecond laser-matter interactions, elastic-plastic there is an elastic shock wave (SW), which propagates before the strong plastic shock with plastic pressures of up

  20. Field Tests of a NaI(Tl)-Based Vehicle Portal Monitor at Border Crossings

    SciTech Connect (OSTI)

    Stromswold, David C.; Darkoch, Justin; Ely, James H.; Hansen, Randy R.; Kouzes, Richard T.; Milbrath, Brian D.; Runkle, Robert C.; Sliger, William A.; Smart, John E.; Stephens, Daniel L.; Todd, Lindsay C.; Woodring, Mitchell L.

    2004-10-01T23:59:59.000Z

    Radiation portal monitors are commonly used at international border crossings to detect illicit transport of radioactive material. Most monitors use plastic scintillators to detect gamma rays, but next-generation monitors may contain NaI(Tl). In order to directly compare the performance of the two types of detectors, a prototype NaI(Tl) monitor was tested at two international border crossings adjacent to a comparable plastic scintillator monitor. The NaI(Tl) monitor housed four large detectors, each 10.2 cm x 10.2 cm x 41 cm. The empirical data set from the two field tests contains approximately 3800 passages with known cargo loads for each vehicle For a small subset of the vehicles, high purity germanium detector spectra were also collected. During the survey period several vehicles containing commercial products with naturally occurring radioactive material (NORM) passed through the monitor. Typical NORM cargo included pottery, large granite slabs, rock-based floor tiles, construction stone blocks, abrasive material, and fertilizer. Non-NORM sources encountered during the field tests included a large source of 60Co (200,000 GBq) and a shipment of uranium oxide, both items being legally transported. The information obtained during the tests provides a good empirical data set to compare the effectiveness of NaI(Tl) and plastic-scintillator portal monitors. The capability to be sensitive to illicit materials, but not alarm on NORM, is a key figure of merit for portal monitors. (PIET-43741-TM-210)

  1. Upper limit on the cross section for reactor antineutrinos changing 22Na decay rates

    E-Print Network [OSTI]

    R. J. de Meijer; S. W. Steyn

    2014-09-23T23:59:59.000Z

    In this paper we present results of a long-term observation of the decay of 22Na in the presence of a nuclear fission reactor. The measurements were made outside the containment wall of and underneath the Koeberg nuclear power plant near Cape Town, South Africa. Antineutrino fluxes ranged from ~5*10^11 to 1.6*10^13 cm^-2 s^-1 during this period. We show that the coincidence summing technique provides a sensitive tool to measure a change in the total decay constant as well as the branching ratio between EC and beta+ decay of 22Na to the first excited state in 22Ne. We observe a relative change in count rate between reactor-ON and reactor-OFF equal to (-0.51+/-0.11)*10^-4. After evaluating possible systematic uncertainties we conclude that the effect is either due to a hidden instrumental cause or due to an interaction between antineutrinos and the 22Na nucleus. An upper limit of ~0.03 barn has been deduced for observing any change in the decay rate of 22Na due to antineutrino interactions.

  2. HOSSEINI et al Optimization of NaOH thermo-chemical pre-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A municipal solid waste produced in urban and rural communities is a serious pollution source of water; Response Surface Method; water resource; pollution INTRODUCTION Large amount of solid waste is producedHOSSEINI et al Optimization of NaOH thermo-chemical pre- treatment for enhancing solubilisation

  3. f i na n c i a l r e p o rt Report of Management

    E-Print Network [OSTI]

    Notes To Consolidated Financial Statements A Significant Accounting Policies B Accounting Changes Cf i na n c i a l r e p o rt Report of Management Report of Independent Accountants Management Discussion Consolidated Financial Statements Earnings Financial Position Cash Flows Stockholders' Equity

  4. Beta-delayed gamma spectroscopy of neutron rich 27,28,29Na

    SciTech Connect (OSTI)

    Tripathi, V.; Tabor, S.L.; Hoffman, C.R.; Wiedeking, M.; Volya,A.; Mantica, P.F.; Davies, A.D.; Liddick, S.N.; Mueller, W.F.; Stolz, A.; Tomlin, B.E.

    2006-05-04T23:59:59.000Z

    The low-energy level structure of the exotic Na isotopes {sup 27,28,29}Na has been investigated through {beta}-delayed {gamma} spectroscopy. Detailed level structure of {sup 28,29}Na has been obtained through {beta}{gamma} and {beta}{gamma}{gamma} coincidence measurements. The low-lying levels populated in {sup 27}Na by {beta} decay were found to corroborate well with the in-beam data from the literature. Half-lives of the parent nuclides, {sup 27,28,29}Ne, were measured using {beta} fragment as well as fragment {beta}{gamma} coincidences and compared to previous measurements. The {beta}-delayed one- and two-neutron emission branching probabilities have been obtained from the {gamma} activities of the grand daughter nuclei. A comparison of the level schemes and the {beta}-decay branching ratios is made with shell-model predictions, both with and without intruder configurations, to understand the transition from normal-dominant to intruder-dominant excitations in these neutron-rich nuclei approaching the island of inversion.

  5. {beta}-delayed {gamma} spectroscopy of neutron rich {sup 27,28,29}Na

    SciTech Connect (OSTI)

    Tripathi, Vandana; Tabor, S.L.; Hoffman, C.R.; Wiedeking, M.; Volya, A.; Otsuka, T.; Utsuno, Y. [Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States); Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033 (Japan) and RIKEN, Hirosawa, Wako-shi, Saitama 351-0198 (Japan); Advanced Science Research Centre, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan); Mantica, P.F.; Liddick, S.N.; Tomlin, B.E. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 (United States); Davies, A.D. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States); Mueller, W.F.; Stolz, A. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

    2006-05-15T23:59:59.000Z

    The low-energy level structure of the exotic Na isotopes {sup 27,28,29}Na has been investigated through {beta}-delayed {gamma} spectroscopy. Detailed level structure of {sup 28,29}Na has been obtained through {beta}{gamma} and {beta}{gamma}{gamma} coincidence measurements. The low-lying levels populated in {sup 27}Na by {beta} decay were found to corroborate well with the in-beam data from the literature. Half-lives of the parent nuclides, {sup 27,28,29}Ne, were measured using {beta} fragment as well as fragment {beta}{gamma} coincidences and compared to previous measurements. The {beta}-delayed one- and two-neutron emission branching probabilities have been obtained from the {gamma} activities of the grand daughter nuclei. A comparison of the level schemes and the {beta}-decay branching ratios is made with shell-model predictions, both with and without intruder configurations, to understand the transition from normal-dominant to intruder-dominant excitations in these neutron-rich nuclei approaching the island of inversion.

  6. Grant Title: NATIONAL ACADEMY OF EDUCATION/SPENCER POSTDOCTORAL FELLOWSHIP Funding Opportunity Number: N/A

    E-Print Network [OSTI]

    Farritor, Shane

    Grant Title: NATIONAL ACADEMY OF EDUCATION/SPENCER POSTDOCTORAL FELLOWSHIP Funding Opportunity Number: N/A Agency/Department: The National Academy of Education/Spencer. Area of Research: Fellowship, 2011. Summary: TThe National Academy of Education/Spencer Postdoctoral Fellowship Program supports

  7. LQ Optimal Control of Wind Turbines in Hybrid Power Systems N.A. Cutululis1

    E-Print Network [OSTI]

    LQ Optimal Control of Wind Turbines in Hybrid Power Systems N.A. Cutululis1 , H. Bindner1 , I power systems represent a viable solution for rural electrification. One of the most important aspects taken into account for the design of a wind ­ diesel power system is the wind power penetration, which

  8. Challenges for Na-ion Negative Electrodes V. L. Chevrier and G. Ceder*,z

    E-Print Network [OSTI]

    Ceder, Gerbrand

    -ion batteries have been proposed as candidates for replacing Li-ion batteries. In this paper we examine obtainable with lithiated graphite. These findings highlight the need of novel ideas for Na-ion negative submitted May 10, 2011; revised manuscript received June 13, 2011. Published July 14, 2011. Li-ion batteries

  9. Cellular/Molecular Vestibular Hair Bundles Control pH with (Na , K )/H

    E-Print Network [OSTI]

    Rao, Rajini

    Cellular/Molecular Vestibular Hair Bundles Control pH with (Na , K )/H Exchangers NHE6 and NHE9 21205, and 3Graduate School of Life Science, University of Hyogo, Ako, Hyogo 678-1297, Japan In hair acidify mechani- cally sensitive hair bundles without efficient removal of H . We found that, whereas

  10. Na, Mg, Ni and Cs distribution and speciation after long-term alteration of a simulated nuclear waste glass

    E-Print Network [OSTI]

    distribution and speciation of Na, Mg, Ni and Cs in a simulated (inactive) nuclear waste glass were studied and Cs represent dose determining long-lived radionuclides (59 Ni, 135 Cs) in vitrified nuclear wasteNa, Mg, Ni and Cs distribution and speciation after long-term alteration of a simulated nuclear

  11. Effects of the treatment of straw with NaOH and urea solutions on ingestibility and digestibility in sheep

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Effects of the treatment of straw with NaOH and urea solutions on ingestibility and digestibility of digestibility measures. The main results appear in table I. Straw intake and digestibility were in- creased by the treatments. This was par- ticularly true for NaOH treatments with the exception of nitrogen digestibility

  12. The effect of Na in polycrystalline and epitaxial single-crystal CuIn1xGaxSe2

    E-Print Network [OSTI]

    Rockett, Angus

    online 15 December 2004 Abstract Na is found to improve the performance of Cu(In,Ga)Se2 (CIGS) solar the highest efficiency, exceeding 19%, of any thin film polycrystalline solar cell [1]. The diodes work well cells although the mechanism is not clear. This paper briefly reviews some of the observations on Na

  13. Calcite dissolution and Ca/Na ion-exchange reactions in columns with different flow rates through high ESR soil

    E-Print Network [OSTI]

    Navarre, Audrey

    1999-01-01T23:59:59.000Z

    The leaching of a Na?-affected calcareous soil with water results in two concurrent recesses: (i) CaCO? dissolution, and (ii) replacement of Na? on the cation-exchange complex by Ca²?. In the current study, Woodward soil (coarse-silty, mixed...

  14. Calcite dissolution and Ca/Na ion-exchange reactions in columns with different flow rates through high ESR soil 

    E-Print Network [OSTI]

    Navarre, Audrey

    1999-01-01T23:59:59.000Z

    The leaching of a Na?-affected calcareous soil with water results in two concurrent recesses: (i) CaCO? dissolution, and (ii) replacement of Na? on the cation-exchange complex by Ca²?. In the current study, Woodward soil (coarse-silty, mixed...

  15. Background studies for NaI(Tl) detectors in the ANAIS dark matter project

    SciTech Connect (OSTI)

    Amaré, J.; Borjabad, S.; Cebrián, S.; Cuesta, C.; Fortuño, D.; García, E.; Ginestra, C.; Gómez, H.; Martínez, M.; Oliván, M. A.; Ortigoza, Y.; Solórzano, A. Ortiz de; Pobes, C.; Puimedón, J.; Sarsa, M. L.; Villar, J. A.; Villar, P. [Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain and Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe s/n, 22880 Canfranc Estación, Huesca (Spain)] [Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009 Zaragoza, Spain and Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe s/n, 22880 Canfranc Estación, Huesca (Spain)

    2013-08-08T23:59:59.000Z

    Several large NaI(Tl) detectors, produced by different companies, have been operated in the Canfranc Underground Laboratory (LSC) in the frame of the ANAIS (Annual modulation with NaI Scintillators) project devoted to the direct detection of dark matter. A complete background model has been developed for a 9.6 kg detector (referred as ANAIS-0 prototype) after a long data taking at LSC. Activities from the natural chains of {sup 238}U and {sup 232}Th, and {sup 40}K in the NaI(Tl) crystal were evaluated applying different methods: discrimination of alpha particles vs beta/gamma background by Pulse Shape Analysis for quantifying the content of the natural chains and coincidence techniques for {sup 40}K. Radioactive contaminations in the detector and shielding components were also determined by HPGe spectrometry. Monte Carlo simulations using Geant4 package were carried out to evaluate their contribution. At high energies, most of the measured background is nicely reproduced; at low energy some non-explained components are still present, although some plausible background sources have been analyzed. The {sup 40}K content of the NaI(Tl) crystal has been confirmed to be the dominant contributor to the measured background with this detector. In addition, preliminary results of the background characterization, presently underway at the LSC, of two recently produced NaI(Tl) detectors, with 12.5 kg mass each, will be presented: cosmogenic induced activity has been clearly observed and is being quantified, and {sup 40}K activity at a level ten times lower than in ANAIS-0 has been determined.

  16. Cleaning residual NaK in the fast flux test facility fuel storage cooling system

    SciTech Connect (OSTI)

    Burke, T.M.; Church, W.R. [Fluor Hanford, PO Box 1000, Richland, Washington, 99352 (United States); Hodgson, K.M. [Fluor Government Group, PO Box 1050, Richland, Washington, 99352 (United States)

    2008-01-15T23:59:59.000Z

    The Fast Flux Test Facility (FFTF), located on the U.S. Department of Energy's Hanford Reservation, is a liquid metal-cooled test reactor. The FFTF was constructed to support the U.S. Liquid Metal Fast Breeder Reactor Program. The bulk of the alkali metal (sodium and NaK) has been drained and will be stored onsite prior to final disposition. Residual NaK needed to be removed from the pipes, pumps, heat exchangers, tanks, and vessels in the Fuel Storage Facility (FSF) cooling system. The cooling system was drained in 2004 leaving residual NaK in the pipes and equipment. The estimated residual NaK volume was 76 liters in the storage tank, 1.9 liters in the expansion tank, and 19-39 liters in the heat transfer loop. The residual NaK volume in the remainder of the system was expected to be very small, consisting of films, droplets, and very small pools. The NaK in the FSF Cooling System was not radiologically contaminated. The portions of the cooling system to be cleaned were divided into four groups: 1. The storage tank, filter, pump, and associated piping; 2. The heat exchanger, expansion tank, and associated piping; 3. Argon supply piping; 4. In-vessel heat transfer loop. The cleaning was contracted to Creative Engineers, Inc. (CEI) and they used their superheated steam process to clean the cooling system. It has been concluded that during the modification activities (prior to CEI coming onsite) to prepare the NaK Cooling System for cleaning, tank T-914 was pressurized relative to the In-Vessel NaK Cooler and NaK was pushed from the tank back into the Cooler and that on November 6, 2005, when the gas purge through the In-Vessel NaK Cooler was increased from 141.6 slm to 283.2 slm, NaK was forced from the In-Vessel NaK Cooler and it contacted water in the vent line and/or scrubber. The gases from the reaction then traveled back through the vent line coating the internal surface of the vent line with NaK and NaK reaction products. The hot gases also exited the scrubber through the stack and due to the temperature of the gas, the hydrogen auto ignited when it mixed with the oxygen in the air. There was no damage to equipment, no injuries, and no significant release of hazardous material. Even though the FSF Cooling System is the only system at FFTF that contains residual NaK, there are lessons to be learned from this event that can be applied to future residual sodium removal activities. The lessons learned are: - Before cleaning equipment containing residual alkali metal the volume of alkali metal in the equipment should be minimized to the extent practical. As much as possible, reconfirm the amount and location of the alkali metal immediately prior to cleaning, especially if additional evolutions have been performed or significant time has passed. This is especially true for small diameter pipe (<20.3 centimeters diameter) that is being cleaned in place since gas flow is more likely to move the alkali metal. Potential confirmation methods could include visual inspection (difficult in all-metal systems), nondestructive examination (e.g., ultrasonic measurements) and repeating previous evolutions used to drain the system. Also, expect to find alkali metal in places it would not reasonably be expected to be. - Staff with an intimate knowledge of the plant equipment and the bulk alkali metal draining activities is critical to being able to confirm the amount and locations of the alkali metal residuals and to safely clean the residuals. - Minimize the potential for movement of alkali metal during cleaning or limit the distance and locations into which alkali metal can move. - Recognize that when working with alkali metal reactions, occasional pops and bangs are to be anticipated. - Pre-plan emergency responses to unplanned events to assure responses planned for an operating reactor are appropriate for the deactivation phase.

  17. University of Delaware Energy Institute

    SciTech Connect (OSTI)

    Klein, Michael T

    2012-09-30T23:59:59.000Z

    The main goal of this project funded through this DOE grant is to help in the establishment of the University of Delaware Energy Institute (UDEI) which is designed to be a long-term, on-going project. The broad mission of UDEI is to develop collaborative programs encouraging research activities in the new and emerging energy technologies and to partner with industry and government in meeting the challenges posed by the nation�s pressing energy needs.

  18. OR I GI NA L S I GNE D B Y OR I GI NA L S I GNE D B Y

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire3627 FederalTransformers |OJT!LSU/CAMD ProcedureNA L S I GNE

  19. Delaware City, Delaware: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnicNewDeafDeerDel Aire,Delafield,Delaware City,

  20. Stabilization of bimolecular islands on ultrathin NaCl films by a vicinal substrate M.E. Caas-Ventura a,b,1

    E-Print Network [OSTI]

    Brune, Harald

    Stabilization of bimolecular islands on ultrathin NaCl films by a vicinal substrate M.E. Cañas-Ventura

  1. Densities and refractive indexes of aqueous (Li,K,Na) NO[sub 3] mixtures

    SciTech Connect (OSTI)

    Ally, M.R.; Zaltash, A.; Linkous, R.L. (Oak Ridge National Lab., TN (United States). Energy Div.); Klatt, L.N. (Oak Ridge National Lab., TN (United States). Analytical Chemistry Div.)

    1991-04-01T23:59:59.000Z

    This paper describes experimental procedures and techniques for measuring densities and/or refractive indexes of aqueous salt solutions between 25 and 200 [degrees]C and with 18.90-90.50 wt % mixed salt (LINO[sub 3], KNO[sub 3], and NaNO[sub 3]). An electrolyte solution of (LI, K, Na) NO[sub 3] slats in water was chosen for study because of its recent development as a potential high-temperature heat pump fluid, but any other appropriate fluid may be accommodated for study in the apparatus. The densities and refractive indexes are shown to represent a convenient way to measuring the concentration of salt (or water), and accuracies of [plus minus]0.8 and [plus minus]0.3 wt % total mixed salt were achieved by using the above two methods, respectively.

  2. The 23Na(?,p) 26Mg reaction rate at astrophysically relevant energies

    E-Print Network [OSTI]

    A. M. Howard; M. Munch; H. O. U. Fynbo; O. S. Kirsebom; K. L. Laursen; C. Aa. Diget; N. J. Hubbard

    2015-06-23T23:59:59.000Z

    The production of 26 Al in massive stars is sensitive to the 23 Na(a,p) 26 Mg cross section. Recent experimental data suggest the currently recommended cross sections are underestimated by a factor of 40. We present here differential cross sections for the 23 Na(a,p) 26 Mg reaction measured in the energy range E c.m. = 1.7 - 2.5 MeV. Concurrent measurements of Rutherford scattering provide absolute normalisations which are independent of variations in target properties. Angular distributions were measured for both p 0 and p 1 permitting the determination of total cross sections. The results show no significant deviation from the statistical model calculations upon which the recommended rates are based. We therefore retain the previous recommendation without the increase in cross section and resulting stellar reaction rates of a factor of 40, impacting on the 26 Al yield from massive stars by more than a factor of three.

  3. The performance of thin NaI(Tl) scintillator plate for dark matter search

    E-Print Network [OSTI]

    K. Fushimi; H. Kawasuso; E. Aihara; R. Hayami; M. Toi; K. Yasuda; S. Nakayama; N. Koori; M. Nomachi; K. Ichihara; R. Hazama; S. Yoshida; S. Umehara; K. Imagawa; H. Ito

    2006-04-15T23:59:59.000Z

    A thin (0.05cm) and wide area (5cmX5cm) NaI(Tl) scintillator was developed. The performance of the thin NaI(Tl) plate, energy resolution, single photoelectron energy and position sensitivity were tested. An excellent energy resolution of 20% (FWHM) at 60keV was obtained. The single photoelectron energy was calculated to be approximately 0.42 0.02keV. Position information in the 5cmx5cm area of the detector was also obtained by analyzing the ratio of the number of photons collected at opposite ends of the detector. The position resolution was obtained to be 1cm (FWHM) in the 5cmx5cm area.

  4. High Density Hydrogen Storage System Demonstration Using NaAlH4 Based Complex Compound Hydrides

    SciTech Connect (OSTI)

    Daniel A. Mosher; Xia Tang; Ronald J. Brown; Sarah Arsenault; Salvatore Saitta; Bruce L. Laube; Robert H. Dold; Donald L. Anton

    2007-07-27T23:59:59.000Z

    This final report describes the motivations, activities and results of the hydrogen storage independent project "High Density Hydrogen Storage System Demonstration Using NaAlH4 Based Complex Compound Hydrides" performed by the United Technologies Research Center under the Department of Energy Hydrogen Program, contract # DE-FC36-02AL67610. The objectives of the project were to identify and address the key systems technologies associated with applying complex hydride materials, particularly ones which differ from those for conventional metal hydride based storage. This involved the design, fabrication and testing of two prototype systems based on the hydrogen storage material NaAlH4. Safety testing, catalysis studies, heat exchanger optimization, reaction kinetics modeling, thermochemical finite element analysis, powder densification development and material neutralization were elements included in the effort.

  5. Spectral Content of 22Na/44Ti Decay Data: Implications for a Solar Influence

    E-Print Network [OSTI]

    Daniel O'Keefe; Brittany L. Morreale; Robert H. Lee; John B. Buncher; Ephraim Fischbach; Tom Gruenwald; Jere H. Jenkins; Daniel Javorsek II; Peter A. Sturrock

    2012-12-10T23:59:59.000Z

    We report a reanalysis of data on the measured decay rate ratio $^{22}$Na/$^{44}$Ti which were originally published by Norman et al., and interpreted as supporting the conventional hypothesis that nuclear decay rates are constant and not affected by outside influences. We find upon a more detailed analysis of both the amplitude and the phase of the Norman data that they actually favor the presence of an annual variation in $^{22}$Na/$^{44}$Ti, albeit weakly. Moreover, this conclusion holds for a broad range of parameters describing the amplitude and phase of an annual sinusoidal variation in these data. The results from this and related analyses underscore the growing importance of phase considerations in understanding the possible influence of the Sun on nuclear decays. Our conclusions with respect to the phase of the Norman data are consistent with independent analyses of solar neutrino data obtained at Super-Kamiokande-I and the Sudbury Neutrino Observatory (SNO).

  6. Živalska frazeologija v govoru vasi Dob pri Pliberku na avstrijskem Koroškem

    E-Print Network [OSTI]

    Trampusch, Tatjana

    1999-01-01T23:59:59.000Z

    praslovanskega modela frazema kdo/kaj iti rakorn iviigat ugotav- lja W. Eismann, da vsekakor lahko izhajamo iz - V slovanskem kulturnem pro- storu razSirjene - prvotne oblike iti k rakorn, iti rakorn iviigat z izvornim pome- nom 'izgubiti se, izginiti...- 'wi:na. V dobljanskem govoru s tem primerjalnim frazemom oznatujejo predvsem divje obnaganje pijancev, mladine in otrok - prim. tudi iivina kot psovka, ki pome- ni surovega in nasilnega (SSKJ V: 1005) Eloveka; FE lahko prav tako opisuje razpo...

  7. LIVROS DIDTICOS E SUAS FUNES PARA O PROFESSOR DE MATEMTICA NO BRASIL E NA FRANA.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    LIVROS DIDÁTICOS E SUAS FUN��ES PARA O PROFESSOR DE MATEMÁTICA NO BRASIL E NA FRAN�A. Clovis Gomes (França) GP 0517 Psicologia da educação matemática ­UNICAMP Campinas SP (Brasil) Jean dois países. No Brasil a compra de livros didáticos pelo governo brasileiro envolve volumes e cifras de

  8. Sistematizao de ocorrncias de desastres naturais na regio Sul do Brasil Silvia Midori Saito1

    E-Print Network [OSTI]

    Sistematização de ocorrências de desastres naturais na região Sul do Brasil Silvia Midori Saito1 - GEODESASTRES-SUL Caixa Postal 5021 - CEP: 97110-970, Santa Maria, RS, Brasil {silvia.saito; camila próximo artigo 39 Anais XIV Simpósio Brasileiro de Sensoriamento Remoto, Natal, Brasil, 25-30 abril 2009

  9. VII Seminrio Tcnico Cientfico de Anlise dos Dados do Desmatamento na Amaznia Legal

    E-Print Network [OSTI]

    VII Seminário Técnico Científico de Análise dos Dados do Desmatamento na Amazônia Legal Base em Atividades Produtivas 363,75 44,72 (319,03) -88% Defesa do Pantanal com a Valorização da em Setembro de 2009. #12;Dados Gleba Curuá Alertas de Desmatamento (DETER) em 2009 ­ Jan/Set Classe

  10. Threshold model and the latest NA50 data on $J/?$ suppression in Pb+Pb collisions

    E-Print Network [OSTI]

    A. K. Chaudhuri

    2003-05-26T23:59:59.000Z

    Using the QGP motivated threshold model, where all the $J/\\psi$'s are suppressed above a threshold density, we have analyzed the latest version of the NA50 data on the centrality dependence of the $J/\\psi$ over Drell-Yan ratio. The data are not well explain in the model, unless the threshold density is largely smeared. Large smeared threshold density effectively excludes creation of any deconfined medium in the collision.

  11. INDENTATION RESISTANCE OF AN ALUMINIUM FOAM O.B. Olurin, N.A. Fleck

    E-Print Network [OSTI]

    Fleck, Norman A.

    , of relative density 8­15% were tested. Alporas is a closed cell aluminium alloy foam, consisting of 0.4­2 wt completed: the cell walls contain the oxides CaO and CaAl2O4. It is a cast aluminium alloy foam and detailsINDENTATION RESISTANCE OF AN ALUMINIUM FOAM O.B. Olurin, N.A. Fleck and M.F. Ashby Cambridge

  12. Role of Cl in Electrogenic Na -coupled Cotransporters GAT1 and Received for publication, August 10, 2000, and in revised form, September 5, 2000

    E-Print Network [OSTI]

    Eskandari, Sepehr

    criterion to classify Na cotransporters. Electrogenic sodium cotransporters utilize the movement of Na down, nutrients, and neu- rotransmitters into cells (1). This broad group of Na -driven cotransporters contains potential in most cells is close to the resting membrane potential, and little free energy would be provided

  13. Investigation of the ion exchange equilibrium between NA+, Ca++, Mg++, and a sulfonated polystyrene resin at various concentrations

    E-Print Network [OSTI]

    McIlhenny, William Franklin

    1958-01-01T23:59:59.000Z

    Cl and saturated Na01 with a sulfonated polystyrene cation exchanger. Anderson and Peebles report the Ca ? Na equilibrium with a l ++ + sulfonated polystyrene resin to 0. 62 N. 24 Juda, Kasper and Potter reported on the 1on exchange softening of seawater... average K calculated, at least seven values were averaged. 21 DISCUSSION OF RESULTS The measured equ1valent fractions of Mg , Ca , and Na ++ ++ ions in solution, and the calculated equivalent fractions on the resin are given in Table II. From...

  14. Effects of dilute aqueous NaCl solution on caffeine aggregation

    SciTech Connect (OSTI)

    Sharma, Bhanita; Paul, Sandip, E-mail: sandipp@iitg.ernet.in [Department of Chemistry, Indian Institute of Technology, Guwahati 781039, Assam (India)] [Department of Chemistry, Indian Institute of Technology, Guwahati 781039, Assam (India)

    2013-11-21T23:59:59.000Z

    The effect of salt concentration on association properties of caffeine molecule was investigated by employing molecular dynamics simulations in isothermal-isobaric ensemble of eight caffeine molecules in pure water and three different salt (NaCl) concentrations, at 300 K temperature and 1 atm pressure. The concentration of caffeine was taken almost at the solubility limit. With increasing salt concentration, we observe enhancement of first peak height and appearance of a second peak in the caffeine-caffeine distribution function. Furthermore, our calculated solvent accessible area values and cluster structure analyses suggest formation of higher order caffeine cluster on addition of salt. The calculated hydrogen bond properties reveal that there is a modest decrease in the average number of water-caffeine hydrogen bonds on addition of NaCl salt. Also observed are: (i) decrease in probability of salt contact ion pair as well as decrease in the solvent separated ion pair formation with increasing salt concentration, (ii) a modest second shell collapse in the water structure, and (iii) dehydration of hydrophobic atomic sites of caffeine on addition of NaCl.

  15. 20Na

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruaryOctober 2, 2014Energy,F β--Decay EvaluatedMgNNa

  16. 20Na

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruaryOctober 2, 2014Energy,F β--Decay EvaluatedMgNNa

  17. na-00

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich57/%2A en4/%2A en

  18. 19Na

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isN Ground-StateNovember 1997B β--Decay Evaluated

  19. lgebra Linear aplicada a Economia -"Anlise na Reta" _______________________2 Anlise Macroeconmica III -"Teoria da Poltica Monetria" ___________________3

    E-Print Network [OSTI]

    Liu, I-Shih

    ÍNDICE Álgebra Linear aplicada a Economia - "Análise na Reta" _______________________2 Análise ­ "Crescimento e Concorrência de Firmas" ___5 Desenvolvimento Econômico do Estado do Rio de Janeiro ­ "A Economia Temporais" ______________________________________10 Economia Agrícola I ­ "Economia Agrária

  20. First Detection of NaI D lines in High-Redshift Damped Lyman-alpha Systems

    E-Print Network [OSTI]

    Sohei Kondo; Naoto Kobayashi; Yosuke Minowa; Takuji Tsujimoto; Christopher W. Churchill; Naruhisa Takato; Masanori Iye; Yukiko Kamata; Hiroshi Terada; Tae-Soo Pyo; Hideki Takami; Yutaka Hayano; Tomio Kanzawa; D. Saint-Jacques; Wolfgang Gaessler; Shin Oya; Ko Nedachi; Alan Tokunaga

    2006-03-12T23:59:59.000Z

    A Near-infrared (1.18-1.35 micron) high-resolution spectrum of the gravitationally-lensed QSO APM 08279+5255 was obtained with the IRCS mounted on the Subaru Telescope using the AO system. We detected strong NaI D 5891,5897 doublet absorption in high-redshift DLAs at z=1.062 and 1.181, confirming the presence of NaI, which was first reported for the rest-frame UV NaI 3303.3,3303.9 doublet by Petitjean et al. This is the first detection of NaI D absorption in a high-redshift (z>1) DLA. In addition, we detected a new NaI component in the z=1.062 DLA and four new components in the z=1.181 DLA. Using an empirical relationship between NaI and HI column density, we found that all "components" have large HI column density, so that each component is classified as DLA absorption. We also detected strong NaI D absorption associated with a MgII system at z=1.173. Because no other metal absorption lines were detected in this system at the velocity of the NaI absorption in previously reported optical spectra (observed 3.6 years ago), we interpret this NaI absorption cloud probably appeared in the line of sight toward the QSO after the optical observation. This newly found cloud is likely to be a DLA based upon its large estimated HI column density. We found that the N(NaI)/N(CaII) ratios in these DLAs are systematically smaller than those observed in the Galaxy; they are more consistent with the ratios seen in the Large Magellanic Cloud. This is consistent with dust depletion generally being smaller in lower metallicity environments. However, all five clouds of the z=1.181 system have a high N(NaI)/N(CaII) ratio, which is characteristic of cold dense gas. We tentatively suggest that the host galaxy of this system may be the most significant contributor to the gravitational-lens toward APM 08279+5255.

  1. TRANSFER OF CONTINUOUSLY I. V. INFUSED NaHC14O3 AND Ca47Cl2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    TRANSFER OF CONTINUOUSLY I. V. INFUSED NaHC14O3 AND Ca47Cl2 TO THE HEN'S EGG-SHELL (1) K. LÖRCHER experiment was designed : after continuous i.v. infusion of Ca&dquo;C12 and/or NaHC1403 to achieve constant&dquo;/Sc&dquo;. RESULTS AND DISCUSSION The average egg-shell incorporation of continuously infused Ca&dquo; came out

  2. Identification of a Pool of Non-Pumping Na/K-ATPase* Man Liang1,3

    E-Print Network [OSTI]

    Brand, Paul H.

    Identification of a Pool of Non-Pumping Na/K-ATPase* Man Liang1,3 , Jiang Tian1,3 , Lijun Liu1 Title: Non-pumping Na/K-ATPase 4 To whom correspondence should be addressed: Zi-Jian Xie, Ph-383-4182; FAX: 419-383-2871 E-mail: zxie@meduohio.edu Summary Recent studies have ascribed many non-pumping

  3. Photoemission study of the electronic structure and charge density waves of Na2Ti2Sb2O

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Tan, S. Y.; Jiang, J.; Ye, Z. R.; Niu, X. H.; Song, Y.; Zhang, C. L.; Dai, P. C.; Xie, B. P.; Lai, X. C.; Feng, D. L.

    2015-04-30T23:59:59.000Z

    The electronic structure of Na2Ti2Sb2O single crystal is studied by photon energy and polarization dependent angle-resolved photoemission spectroscopy (ARPES). The obtained band structure and Fermi surface agree well with the band structure calculation of Na2Ti2Sb2O in the non-magnetic state, which indicates that there is no magnetic order in Na2Ti2Sb2O and the electronic correlation is weak. Polarization dependent ARPES results suggest the multi-band and multi-orbital nature of Na2Ti2Sb2O. Photon energy dependent ARPES results suggest that the electronic structure of Na2Ti2Sb2O is rather two-dimensional. Moreover, we find a density wave energy gap forms below the transition temperature and reaches 65 meV at 7 K, indicating that Na2Ti2Sb2O is likely a weakly correlated CDW material in the strong electron-phonon interaction regime. (author)

  4. The electrochemical reactions of SnO2 with Li and Na: a study using thin films and mesoporous carbons

    SciTech Connect (OSTI)

    Gorka, Joanna [ORNL; Baggetto, Loic [ORNL; Keum, Jong Kahk [ORNL; Mahurin, Shannon Mark [ORNL; Mayes, Richard T [ORNL; Dai, Sheng [ORNL; Veith, Gabriel M [ORNL

    2015-01-01T23:59:59.000Z

    In this work we have determined the room temperature electrochemical reactivity of SnO2 thin films and mesoporous carbons filled with SnO2 anodes with Na, and compare the results with those obtained during the reaction with Li. We show that SnO2 can reversibly deliver up to 6.2 Li/SnO2 whereas the reaction with Na is significantly limited. The initial discharge capacity is equivalent to less than 4 Na/SnO2, which is expected to correspond to the formation of 2 Na2O and Sn. This limited discharge capacity suggests the negative role of the formed Na2O matrix upon the reversible reaction of Sn clusters. Moreover, the reversible cycling of less than 1 Na/SnO2, despite the utilization of 6-7 nm SnO2 particles, is indicative of sluggish reaction kinetics. The origin of this significant capacity reduction is likely due to the formation of a diffusion limiting interface. Furthermore, there is a larger apparent hysteresis compared to Li. These results point to the need to design composite structures of SnO2 nanoparticles with suitable morphological and conductivity components.

  5. Delaware Electric Cooperative- Green Energy Fund

    Broader source: Energy.gov [DOE]

    Under the 2005 Delaware Renewable Portfolio Standard (RPS) legislation, electric cooperatives were allowed to opt out of the RPS schedule if they met certain other requirements. One such requirem...

  6. Alternative Fuels Data Center: Delaware Information

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    production facilities in Delaware, use the TransAtlas interactive mapping tool or use BioFuels Atlas to show the use and potential production of biofuels throughout the U.S. and...

  7. Delaware River Basin Commission (Multiple States)

    Broader source: Energy.gov [DOE]

    The Delaware River Basin Commission (DRBC) is a federal-interstate compact government agency that was formed by concurrent legislation enacted in 1961 by the United States and the four basin states...

  8. Syntheses, crystal structures, and properties of three new metal selenites Na{sub 2}Co{sub 2}(SeO{sub 3}){sub 3}, Na{sub 2}Co{sub 1.67}Ni{sub 0.33}(SeO{sub 3}){sub 3}, and Na{sub 2}Ni{sub 2}(SeO{sub 3}){sub 3}

    SciTech Connect (OSTI)

    Yuan Xiaoqing [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Graduate School of the Chinese Academy of Sciences, Beijing 100049 (China); Feng Meiling, E-mail: fml@fjirsm.ac.c [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Li Jianrong [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Graduate School of the Chinese Academy of Sciences, Beijing 100049 (China); Huang Xiaoying, E-mail: xyhuang@fjirsm.ac.c [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)

    2010-09-15T23:59:59.000Z

    Three new sodium cobalt (nickel) selenite compounds, namely, Na{sub 2}Co{sub 2}(SeO{sub 3}){sub 3}, Na{sub 2}Co{sub 1.67}Ni{sub 0.33}(SeO{sub 3}){sub 3}, and Na{sub 2}Ni{sub 2}(SeO{sub 3}){sub 3} have been hydro-/solvothermally synthesized in the mixed solvents of acetonitrile and water. Single-crystal X-ray diffraction analyses reveal that these isostructural compounds belong to the orthorhombic Cmcm space group and their structures feature three-dimensional open frameworks constructed by the two-dimensional layers of [MSeO{sub 3}] pillared by the [SeO{sub 3}]{sup 2-} groups. The two different types of Na{sup +} ions reside in the intersecting two-dimensional channels parallel to the a- and c-axes, respectively. Their thermal properties have been investigated via TGA-DSC. The magnetic measurements indicate the existence of the antiferromagnetic interactions in these compounds. - Graphical abstract: Three new isostructural metal selenites, Na{sub 2}Co{sub 2}(SeO{sub 3}){sub 3}, Na{sub 2}Co{sub 1.67}Ni{sub 0.33}(SeO{sub 3}){sub 3}, and Na{sub 2}Ni{sub 2}(SeO{sub 3}){sub 3} have been hydro-/solvothermally synthesized and characterized. Their structures feature three-dimensional open frameworks with Na{sup +}-occupied channels.

  9. NA-42 TI Shared Software Component Library FY2011 Final Report

    SciTech Connect (OSTI)

    Knudson, Christa K.; Rutz, Frederick C.; Dorow, Kevin E.

    2011-07-21T23:59:59.000Z

    The NA-42 TI program initiated an effort in FY2010 to standardize its software development efforts with the long term goal of migrating toward a software management approach that will allow for the sharing and reuse of code developed within the TI program, improve integration, ensure a level of software documentation, and reduce development costs. The Pacific Northwest National Laboratory (PNNL) has been tasked with two activities that support this mission. PNNL has been tasked with the identification, selection, and implementation of a Shared Software Component Library. The intent of the library is to provide a common repository that is accessible by all authorized NA-42 software development teams. The repository facilitates software reuse through a searchable and easy to use web based interface. As software is submitted to the repository, the component registration process captures meta-data and provides version control for compiled libraries, documentation, and source code. This meta-data is then available for retrieval and review as part of library search results. In FY2010, PNNL and staff from the Remote Sensing Laboratory (RSL) teamed up to develop a software application with the goal of replacing the aging Aerial Measuring System (AMS). The application under development includes an Advanced Visualization and Integration of Data (AVID) framework and associated AMS modules. Throughout development, PNNL and RSL have utilized a common AMS code repository for collaborative code development. The AMS repository is hosted by PNNL, is restricted to the project development team, is accessed via two different geographic locations and continues to be used. The knowledge gained from the collaboration and hosting of this repository in conjunction with PNNL software development and systems engineering capabilities were used in the selection of a package to be used in the implementation of the software component library on behalf of NA-42 TI. The second task managed by PNNL is the development and continued maintenance of the NA-42 TI Software Development Questionnaire. This questionnaire is intended to help software development teams working under NA-42 TI in documenting their development activities. When sufficiently completed, the questionnaire illustrates that the software development activities recorded incorporate significant aspects of the software engineering lifecycle. The questionnaire template is updated as comments are received from NA-42 and/or its development teams and revised versions distributed to those using the questionnaire. PNNL also maintains a list of questionnaire recipients. The blank questionnaire template, the AVID and AMS software being developed, and the completed AVID AMS specific questionnaire are being used as the initial content to be established in the TI Component Library. This report summarizes the approach taken to identify requirements, search for and evaluate technologies, and the approach taken for installation of the software needed to host the component library. Additionally, it defines the process by which users request access for the contribution and retrieval of library content.

  10. Electroless Ni coatings used in 4% NaCl corrosion control of mild steel

    SciTech Connect (OSTI)

    Sanchez, M.A.; Zambrano, J.A.; Perez, O. [Univ. del Zulia, Maracaibo (Venezuela). Centro de Estudios de Corrosion; Podesta, J.J. [Univ. Nacional de La Plata (Argentina). Inst. de Investigaciones Fisicoquimicas Teoricas y Aplicadas

    1997-12-01T23:59:59.000Z

    The purpose of this work is to study the behavior of electroless Ni coatings on SAE 1020 steel in aqueous 4% NaCl solution. An aqueous solution with NiSO{sub 4}.6H{sub 2}O (Nickel Sulfate), NaH{sub 2}PO{sub 2}.2H{sub 2}O (Sodium Hypophosphite), C{sub 3}H{sub 6}O{sub 3} (Lactic Acid), C{sub 3}H{sub 6}O{sub 2} (Propionic Acid) and Pb(NO{sub 3}){sub 2} (Lead Nitrate) as the basic ingredients of the bath was selected for the autocatalytic deposition of Ni, with an average deposit rate of c.a. 19 {micro}m/h. Steel coupons were immersed in the bath for 1, 2, 3 h in the original solution, renewing with fresh solution every hour. Once coated with nickel, the coupons were subjected to heat treatment for 1, 2, and 3 h at 400 C, measuring hardness to determine how it is affected by thermal treatment. Salt-spray tests were carried out at 30 C in line with ASTM B117-75 and DIN 50907 standards. The corrosion rate was determined by potentiodynamic polarizing curves (0.28.10{sup {minus}3} V/s), using a 4.0% w/w NaCl solution. Corrosion resistance was higher in the coupons that underwent 2--3 h of heat treatment and 2--3 h plating time. Corrosion rate varied between 2.41 and 3.40 {micro}m/y. The surface of the coupons in the salt spray chamber had a good appearance at the end of the 568-hour test.

  11. Tako imenovani Na?rt za pridigo iz rokopisne dobe slovenš?ine

    E-Print Network [OSTI]

    Mikhailov, Nikolai

    1999-01-01T23:59:59.000Z

    ?mlicherweise ist aber die Akkusa- tivrektion gebraucht (wahrscheinlich als Analogie: Ia + Acc. 'f?r'). naIega Pron. poss. 1. P. PI. m. Gen. Sg. in -ega. goIpudy Subst. m. des i-Stammes (wie im CRR, SR, KR, SGR) pr?sentiert hier den U-Reflex des ursl. o, was ein... Zeichen der no- tranjgina oder der dolenjSCina sein kann. tu Adv. loc. mod. slow. tu 'hier' oder Pron. dem. N. Sg. n. mod. slow. to mit dem U-Ref lex. Iy k?nnte das Reflexivpronomen si sein. Semantisch m??te es aber als ie 'noch' in- terpretiert...

  12. Magnetoelastic Coupling and Symmetry Breaking in the Frustrated Antiferromagnet {alpha}-NaMnO{sub 2}

    SciTech Connect (OSTI)

    Giot, Maud [Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Vassilika Vouton, 71110 Heraklion (Greece); ISIS, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Chilton-Didcot, OX11 0QX, Oxfordshire (United Kingdom); Chapon, Laurent C.; Radaelli, Paolo G. [ISIS, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Chilton-Didcot, OX11 0QX, Oxfordshire (United Kingdom); Androulakis, John; Lappas, Alexandros [Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Vassilika Vouton, 71110 Heraklion (Greece); Green, Mark A. [NIST Center for Neutron Research, 100 Bureau Drive, Gaithersburg, Maryland 20899-8562 (United States); Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742-2115 (United States)

    2007-12-14T23:59:59.000Z

    The magnetic and crystal structures of the {alpha}-NaMnO{sub 2} have been determined by high-resolution neutron powder diffraction. The system maps out a frustrated triangular spin lattice with anisotropic interactions that displays two-dimensional spin correlations below 200 K. Magnetic frustration is lifted through magneto-elastic coupling, evidenced by strong anisotropic broadening of the diffraction profiles at high temperature and ultimately by a structural phase transition at 45 K. In this low-temperature regime a three-dimensional antiferromagnetic state is observed with a propagation vector k=((1/2),(1/2),0)

  13. Publisher's note: Branching ratios for the beta decay of Na-21 (vol 74, pg 015501, 2006)

    E-Print Network [OSTI]

    Iacob, V. E.; Hardy, John C.; Gagliardi, Carl A.; Goodwin, J.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Tribble, Robert E.; Zhai, Y.; Towner, I. S.

    2006-01-01T23:59:59.000Z

    PHYSICAL REVIEW C 74, 029901(E) (2006) Publisher?s Note: Branching ratios for the ? decay of 21Na [Phys. Rev. C 74, 015501 (2006)] V. E. Iacob, J. C. Hardy, C. A. Gagliardi, J. Goodwin, N. Nica, H. I. Park, G. Tabacaru, L. Trache, R. E. Tribble..., Y. Zhai, and I. S. Towner (Received 31 July 2006; published 11 August 2006) DOI: 10.1103/PhysRevC.74.029901 PACS number(s): 27.30.+t, 23.40.?s, 99.10.Fg This paper was published online on 14 July 2006 with formatting errors in Eqs. (7) and (9...

  14. Thermonuclear reaction rate of $^{18}$Ne($?$,$p$)$^{21}$Na from Monte-Carlo calculations

    E-Print Network [OSTI]

    P. Mohr; R. Longland; C. Iliadis

    2014-12-14T23:59:59.000Z

    The $^{18}$Ne($\\alpha$,$p$)$^{21}$Na reaction impacts the break-out from the hot CNO-cycles to the $rp$-process in type I X-ray bursts. We present a revised thermonuclear reaction rate, which is based on the latest experimental data. The new rate is derived from Monte-Carlo calculations, taking into account the uncertainties of all nuclear physics input quantities. In addition, we present the reaction rate uncertainty and probability density versus temperature. Our results are also consistent with estimates obtained using different indirect approaches.

  15. Thermonuclear reaction rate of $^{18}$Ne($\\alpha$,$p$)$^{21}$Na from Monte-Carlo calculations

    E-Print Network [OSTI]

    Mohr, P; Iliadis, C

    2014-01-01T23:59:59.000Z

    The $^{18}$Ne($\\alpha$,$p$)$^{21}$Na reaction impacts the break-out from the hot CNO-cycles to the $rp$-process in type I X-ray bursts. We present a revised thermonuclear reaction rate, which is based on the latest experimental data. The new rate is derived from Monte-Carlo calculations, taking into account the uncertainties of all nuclear physics input quantities. In addition, we present the reaction rate uncertainty and probability density versus temperature. Our results are also consistent with estimates obtained using different indirect approaches.

  16. Microsoft Word - NA-02-29 NIF reaches milestone.doc

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTubahq.na.govSecurityMaintaining theSan Jose-San REPORTMarch 28,1Q For

  17. Delaware Basin Monitoring Annual Report

    SciTech Connect (OSTI)

    Washington Regulatory and Environmental Services; Washington TRU Solutions LLC

    2003-09-30T23:59:59.000Z

    The Delaware Basin Drilling Surveillance Program (DBDSP) is designed to monitor drilling activities in the vicinity of the Waste Isolation Pilot Plant (WIPP). This program is based on Environmental Protection Agency (EPA) requirements. The EPA environmental standards for the management and disposal of transuranic (TRU) radioactive waste are codified in 40 CFR Part 191 (EPA 1993). Subparts B and C of the standard address the disposal of radioactive waste. The standard requires the Department of Energy (DOE) to demonstrate the expected performance of the disposal system using a probabilistic risk assessment or performance assessment (PA). This PA must show that the expected repository performance will not release radioactive material above limits set by the EPA's standard. This assessment must include the consideration of inadvertent drilling into the repository at some future time.

  18. Delaware Basin Monitoring Annual Report

    SciTech Connect (OSTI)

    Washington Regulatory and Environmental Services; Washington TRU Solutions LLC

    2005-09-30T23:59:59.000Z

    The Delaware Basin Drilling Surveillance Program (DBDSP) is designed to monitor drilling activities in the vicinity of the Waste Isolation Pilot Plant (WIPP). This program is based on Environmental Protection Agency (EPA) requirements. The EPA environmental standards for the management and disposal of transuranic (TRU) radioactive waste are codified in 40 CFR Part 191 (EPA 1993). Subparts B and C of the standard address the disposal of radioactive waste. The standard requires the Department of Energy (DOE) to demonstrate the expected performance of the disposal system using a probabilistic risk assessment or performance assessment (PA). This PA must show that the expected repository performance will not release radioactive material above limits set by the EPA's standard. This assessment must include the consideration of inadvertent drilling into the repository at some future time.

  19. Delaware Basin Monitoring Annual Report

    SciTech Connect (OSTI)

    Washington Regulatory and Environmental Services; Washington TRU Solutions LLC

    2004-09-30T23:59:59.000Z

    The Delaware Basin Drilling Surveillance Program (DBDSP) is designed to monitor drilling activities in the vicinity of the Waste Isolation Pilot Plant (WIPP). This program is based on Environmental Protection Agency (EPA) requirements. The EPA environmental standards for the management and disposal of transuranic (TRU) radioactive waste are codified in 40 CFR Part 191 (EPA 1993). Subparts B and C of the standard address the disposal of radioactive waste. The standard requires the Department of Energy (DOE) to demonstrate the expected performance of the disposal system using a probabilistic risk assessment or performance assessment (PA). This PA must show that the expected repository performance will not release radioactive material above limits set by the EPA's standard. This assessment must include the consideration of inadvertent drilling into the repository at some future time.

  20. NaSt1: A Wolf-Rayet star cloaked by an eta Car--like nebula?

    E-Print Network [OSTI]

    Paul A. Crowther; Linda J. Smith

    1999-03-26T23:59:59.000Z

    We present a study of the peculiar Galactic emission line object NaSt1 (WR122, IRAS 18497+0056) which has previously been classified as a Wolf-Rayet (WR) star. Our spectroscopic dataset comprises Keck I-HIRES, WHT-ISIS and UKIRT-CGS4 observations which show that NaSt1 has a highly reddened nebular spectrum with extremely strong permitted and forbidden lines covering a wide range in excitation. [OII-III] is unusually weak, with HeI-II and [NII] very strong, and carbon absent, suggestive of chemical peculiarities. Narrow-band WHT imaging reveals an elliptical nebula with an average diameter of 6.8arcsec. We measure an interstellar extinction of E(B-V)=2.1mag and estimate a distance of 1-3kpc, suggesting that NaSt1 is a luminous object, with 40.64, N enhanced by a factor of 20, O deficient by a factor of 140, while Ne, Ar and S are normal compared to average HII region abundances. This unusual abundance pattern suggests that the nebula consists of fully CNO-processed material. We compare the spectral appearance of NaSt1 with other luminous emission objects, and conclude that it is not an Ofpe/WN9, B[e] star or symbiotic nova although it does share several characteristics of these systems. We suggest instead that NaSt1 contains a massive evolved star that ejected its heavily CNO-processed outer layers a few thousand years ago. Although the stellar remnant is completely hidden from view by the dense nebula, we argue that the star must be an early-type WR star. The only object that shares some of the peculiarities of NaSt1 is eta Carinae. Whatever its true nature, NaSt1 should no longer be considered as a late-WN classification standard in the near-IR.

  1. High temperature mass spectrometric investigation of the equilibrium vapor composition over three-component mixtures of CsI, NaI, and DyI/sub 3/

    SciTech Connect (OSTI)

    Kaposi, O.; Szilagyi, J.; Lelik, L.

    1984-10-01T23:59:59.000Z

    The molar composition of the saturated vapor phase over ternary iodides of CsI, NaI, and DyI/sub 3/ at 860 to 1060 K was investigated by means of a mass spectrometer equipped with a Knudsen cell evaporator system. Fragmentation patterns and appearance potentials for the most intense ions were determined. Besides the previously detected fragments in the equilibrium vapor above the two-component systems, fragment ions from the complex molecules NaCsDyI/sub 5/, Na/sub 2/CsDyI/sub 6/, NaCs/sub 2/DyI/sub 6/, and Na/sub 3/Cs/sub 2/DyI/sub 8/ were found. Ion current vs temperature data yielded heats of sublimation: ..delta..H/sub s/ (NaCsDyI/sub 5/)/sub 960K/ = 320 +/- 13 kJ/mol; ..delta..H/sub s/ (Na/sub 2/CsDyI/sub 6/)/sub 960K/ = 325 +/- 11 kJ/mol; ..delta..H/sub s/ (NaCs/sub 2/DyI/sub 6/)/sub 960K/ = 348 +/- 15 kJ/mol; and ..delta..H/sub s/ (Na/sub 3/Cs/sub 2/DyI/sub 8/)/sub 960K/ = 366 +/- 17 kJ/mol. From the various high-temperature equilibrium reactions, one may calculate the following heats of formation: ..delta..H/sub f/ (NaCsDyI/sub 5/)/sub g/ = -863 +/- 23 kJ/mol; ..delta..H/sub f/ (Na/sub 2/CsDyI/sub 6/)/sub g/ = -1170 +/- 31 kJ/mol; ..delta..H/sub f/ (NaCs/sub 2/DyI/sub 6/)/sub g/ = -1235 +/- 33 kJ/mol; and ..delta..H/sub f/ (Na/sub 3/Cs/sub 2/DyI/sub 8/) = -1806 +/- 17 kJ/mol.

  2. Sub-THz complex dielectric constants of montmorillionite clay thin samples with Na$^{+}$/Ca$^{++}$-ions

    E-Print Network [OSTI]

    Rezwanur Rahman; Douglas K. McCarty; Manika Prasad; John A. Scales

    2015-02-13T23:59:59.000Z

    We implement a technique to characterize electromagnetic properties at frequencies 100 to 165 GHz (3 cm$^{-1}$ to 4.95 cm$^{-1}$) of oriented montmorillionite samples using an open cavity resonator connected to a sub-millimeter wave VNA (Vector Network Analyzer). We measured dielectric constants perpendicular to the bedding plane on oriented Na$^{+}$ and Ca$^{++}$-ion stabilized montmorillionite samples deposited on a glass slide at ambient laboratory conditions (room temperature and room light). The clay layer is much thinner ($\\sim$ 30 $\\mu$m) than the glass substrate ($\\sim$ 2.18 mm). The real part of dielectric constant,$\\epsilon_{re}$, is essentially constant over this frequency range but is larger in Na$^{+}$- than in Ca$^{++}$-ioned clay. The total electrical conductivity (associated with the imaginary part of dielectric constant, $\\epsilon_{im}$) of both samples increases monotonically at lower frequencies ($$ 110 GHz. The dispersion of the samples display a dependence on the ionic strength in the clay interlayers, i.e., $\\zeta$-potential in the Stern layers.

  3. Intercalation of a Nonionic Surfactant (C10E3) bilayer into a Na-Montmorillonite Clay

    E-Print Network [OSTI]

    Regis Guegan

    2010-11-27T23:59:59.000Z

    A nonionic surfactant, the tri-ethylene glycol mono n-decyl ether (C10E3), characterized by its lamellar phase state, was introduced in the interlayer of a Na-montmorillonite clay at several concentrations. The synthesized organoclays were characterized by Small Angle X-Ray Scattering in conjunction with Fourier Transform Infrared spectroscopy, and adsorption isotherms. Experiments showed that a bilayer of C10E3 was intercalated into the interlayer space of the naturally exchanged Na-montmorillonite, resulting in the aggregation of the lyotropic liquid crystal state in the lamellar phase. This behavior strongly differs from previous observations of confinement of nonionic surfactants in clays where the expansion of the interlayer space was limited to two monolayers parallel to the silicate surface and cationic surfactants in clays where the intercalation of organic compounds is introduced into the clay galleries through ion exchange. The confinement of a bilayer of C10E3 nonionic surfactant in clays offers new perspectives for the realization of hybrid nanomaterials since the synthesized organoclays preserve the electrostatic characteristics of the clays, thus allowing further ion exchange, while presenting at the same time a hydrophobic surface and a maximum opening of the interlayer space for the adsorption of neutral organic molecules of important size with functional properties.

  4. Measurements of NaI:Tl Electron Response using SLYNCI: Comparison of Different Samples

    SciTech Connect (OSTI)

    Hull, G; Choong, W; Moses, W W; Bizarri, G; Valentine, J D; Payne, S A; Cherepy, N; Reutter, B W

    2007-11-12T23:59:59.000Z

    This paper measures the sample to sample variation in the light yield non-proportionality of NaI:Tl, and so explores whether this is an invariant characteristic of the material or whether it is dependent on the chemical and physical properties of tested sample. In this work we report on the electron response of nine crystals of NaI(Tl), differing in shape, volume, age, manufacturer and quality. The non-proportionality has been measured at the SLYNCI facility in the energy range between 3.5 to 460 keV. The Scintillation Light Yield Non-proportionality Characterization Instrument (SLYNCI) is a next generation Compton Coincidence device, explicitly designed to study the 'non-proportionality' of the electron response in scintillators and the contribution of this effect to the intrinsic energy resolution. We also discuss the gamma response, x-ray excited emission spectra and decay times for the nine crystals, in order to provide a complete characterization of their physical properties and determine whether the mechanism of scintillation varies between samples.

  5. Measurements of NaI(Tl) electron response: comparison of different samples

    SciTech Connect (OSTI)

    Hull, Giulia; Choong, Woon-Seng; Moses, William W.; Bizarri, Gregory; Valentine, John D.; Payne, Stephen A.; Cherepy, Nerine J.; Reutter, Bryan W.

    2008-12-10T23:59:59.000Z

    This paper measures the sample to sample variation in the light yield proportionality of NaI(Tl), and so explores whether this is an invariant characteristic of the material or whether it depends on the chemical and physical properties of the tested samples. We report on the electron response of nine crystals of NaI(Tl), differing in shape, volume, age, manufacturer and quality. The proportionality has been measured at the SLYNCI facility in the energy range between 3.5 to 460 keV. We observe that while samples produced by the same manufacturer at approximately the same time have virtually identical electron response curves, there are significant sample to sample variations among crystals produced by different manufacturers or at different times. In an effort to correlate changes in the electron response with details of the scintillation mechanism, we characterized other scintillation properties, including the gamma response and the x-ray excited emission spectra and decay times, for the nine crystals. While sample to sample differences in these crystals were observed, we have been unable to identify the underlying fundamental mechanisms that are responsible for these differences.

  6. Mechanical design and fabrication of a prototype facility for processing NaK using a chlorine reaction method

    SciTech Connect (OSTI)

    Dafoe, R.; Keller, D.; Stoll, F.

    1990-01-01T23:59:59.000Z

    A prototype facility has been built at the Idaho National Engineering Laboratory (INEL) to dispose of 180 gal(0.68 m{sup 3}) of radioactively contaminated NaK (sodium-potassium) that have been stored on site for 35 years. The NaK was used as primary coolant for the Experimental Breeder Reactor I (EBR-I) at the INEL and was contaminated during a meltdown of the Mark II core in November 1955. The NaK then was transferred to four containers for temporary storage. The facility process will react the NaK with elemental chlorine using a batch process to produce chemically stable sodium chloride and potassium chloride salts. The first use of the facility will be on a prototype level to verify the method. If results are favorable, the facility will be modified to eventually dispose of the EBR-I NaK. The design and intended operation of the prototype facility are described. 2 figs.

  7. 3/30/2014 Smartportal -10 http://www.smartportal.mk/tehnologii/veternici-za-proizvodstvo-na-energija-10-pati-pomali-od-zrno-oriz/ 1/3

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    ://www.smartportal.mk/tehnologii/veternici-za-proizvodstvo-na-energija-10-pati-pomali-od-zrno-oriz/ 1/3 Linux Windows Android iOS Windows Phone 2 2014 - 22 http://www.smartportal.mk/tehnologii/veternici-za-proizvodstvo-na-energija-10-pati-pomali-od://www.smartportal.mk/tehnologii/veternici-za-proizvodstvo-na-energija-10-pati-pomali-od-zrno-oriz/ 3/3 Western Digital 1 · 5 . -- super SSD Windows 8.1 3 · 5

  8. Investigation of SiO{sub 2}:Na{sub 2}O ratio as a corrosion inhibitor for metal alloys

    SciTech Connect (OSTI)

    Mohamad, N.; Othman, N. K. [School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan (Malaysia); Jalar, A. [Institute of Micro Engineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan (Malaysia)

    2013-11-27T23:59:59.000Z

    The silicate is one of the potential compounds used as a corrosion inhibitor for metal alloys. The mixture between silica and sodium hydroxide (NaOH) succeeded to produce the silicate product. The formulation of a silicate product normally variable depended by the different ratio of SiO{sub 2}:Na{sub 2}O. This research utilized the agriculture waste product of paddy using its rice husk. In this study, the amorphous silica content in rice husk ash was used after rice husk burnt in a muffle furnace at a certain temperature. The X-ray diffraction (XRD) analysis was done to determine the existence of amorphous phase of silica in the rice husk ash. There are several studies that recognized rice husk as an alternative source that obtained high silica content. The X-ray fluorescence (XRF) analysis was carried out to clarify the percentage amount of Si and O elements, which referred the silica compound in rice husk ash. The preparation of sodium silicate formulation were differ based on the SiO{sub 2}:Na{sub 2}O ratio (SiO{sub 2}:Na{sub 2}O ratio = 1.00, 2.00 and 3.00). These silicate based corrosion inhibitors were tested on several testing samples, which were copper (99.9%), aluminum alloy (AA 6061) and carbon steel (SAE 1045). The purpose of this study is to determine the appropriate SiO{sub 2}:Na{sub 2}O ratio and understand how this SiO{sub 2}:Na{sub 2}O ratio can affect the corrosion rate of each metal alloys immersed in acidic medium. In order to investigate this study, weight loss test was conducted in 0.5 M hydrochloric acid (HCl) for 24 hours at room temperature.

  9. On the source of the dust extinction in type Ia supernovae and the discovery of anomalously strong Na I absorption

    SciTech Connect (OSTI)

    Phillips, M. M.; Morrell, Nidia; Hsiao, E. Y.; Campillay, Abdo; Contreras, Carlos [Carnegie Observatories, Las Campanas Observatory, Casilla 601, La Serena (Chile); Simon, Joshua D.; Burns, Christopher R.; Persson, Sven E.; Thompson, I. B.; Freedman, Wendy L. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara St., Pasadena, CA 91101 (United States); Cox, Nick L. J. [Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D bus 2401, 3001 Leuven (Belgium); Foley, Ryan J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Karakas, Amanda I. [Research School of Astronomy and Astrophysics, The Australian National University, Weston, ACT 2611 (Australia); Patat, F. [European Southern Observatory (ESO), Karl Schwarschild Strasse 2, D-85748, Garching bei München (Germany); Sternberg, A. [Max Planck Institute for Astrophysics, Karl Schwarzschild Strasse 1, D-85741 Garching bei München (Germany); Williams, R. E. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Gal-Yam, A. [Benoziyo Center for Astrophysics, Faculty of Physics, Weizmann Institute of Science, Rehovot 76100 (Israel); Leonard, D. C. [Department of Astronomy, San Diego State University, San Diego, CA 92182 (United States); Stritzinger, Maximilian [Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C (Denmark); Folatelli, Gastón, E-mail: mmp@lco.cl [Kavli Institute for the Physics and Mathematics of the Universe, Todai Institutes for Advanced Study, the University of Tokyo, Kashiwa 277-8583 (Japan); and others

    2013-12-10T23:59:59.000Z

    High-dispersion observations of the Na I D ??5890, 5896 and K I ??7665, 7699 interstellar lines, and the diffuse interstellar band at 5780 Å in the spectra of 32 Type Ia supernovae are used as an independent means of probing dust extinction. We show that the dust extinction of the objects where the diffuse interstellar band at 5780 Å is detected is consistent with the visual extinction derived from the supernova colors. This strongly suggests that the dust producing the extinction is predominantly located in the interstellar medium of the host galaxies and not in circumstellar material associated with the progenitor system. One quarter of the supernovae display anomalously large Na I column densities in comparison to the amount of dust extinction derived from their colors. Remarkably, all of the cases of unusually strong Na I D absorption correspond to 'Blueshifted' profiles in the classification scheme of Sternberg et al. This coincidence suggests that outflowing circumstellar gas is responsible for at least some of the cases of anomalously large Na I column densities. Two supernovae with unusually strong Na I D absorption showed essentially normal K I column densities for the dust extinction implied by their colors, but this does not appear to be a universal characteristic. Overall, we find the most accurate predictor of individual supernova extinction to be the equivalent width of the diffuse interstellar band at 5780 Å, and provide an empirical relation for its use. Finally, we identify ways of producing significant enhancements of the Na abundance of circumstellar material in both the single-degenerate and double-degenerate scenarios for the progenitor system.

  10. Fractionation of NaCl, MgCl2, and CaCl2 brines with a polyfunctional ion exchange resin

    E-Print Network [OSTI]

    Baker, Albert Byre

    1959-01-01T23:59:59.000Z

    ml. of 2 N. HC1 and 150 ml. of distilled water. The filtrate and wash solut1ons were analyzed for Ca++, Mg~, and Cl iona. Calcium and magnesium were deter- mined by a complexometric titration with a 0. 01 molar solution of the disodium salt... for various FIGURE 4 VARIATION OF SELECTIVITY COEFFICIENTS WITH FEED SOLUTION RATIO 30. 0 Ca Na 10. 0 3. 0 1. 0 Mg Na Ca 8 0. 3 0. 1 0. 01 0. 03 0. 10 0. 3 1. 0 3. 0 10. 0 Ratio of ? , ? , or ~ in Feed Ca Ca Na' Mg' Na total solution...

  11. A decisão judicial apoiada na Nova Economia Institucional: Acertos e erros dos magistrados brasileiros no caso de revisão dos contratos de arrendamento mercantil de automóveis indexados ao dólar

    E-Print Network [OSTI]

    Bertran, Maria Paula

    2007-01-01T23:59:59.000Z

    judicial apoiada na Nova Economia Institucional: Acertos ede S. Paulo – FD/USP. - Graduanda em Economia pelaFaculdade de Economia, Administração e Contabilidade da

  12. Thermochemical generation of hydrogen and oxygen from water. [NaMnO/sub 2/ and TiO/sub 2/

    DOE Patents [OSTI]

    Robinson, P.R.; Bamberger, C.E.

    1980-02-08T23:59:59.000Z

    A thermochemical cyclic process for the production of hydrogen exploits the reaction between sodium manganate (NaMnO/sub 2/) and titanium dioxide (TiO/sub 2/) to form sodium titanate (Na/sub 2/TiO/sub 3/), manganese (II) titanate (MnTiO/sub 3/) and oxygen. The titanate mixture is treated with sodium hydroxide, in the presence of steam, to form sodium titanate, sodium manganate (III), water and hydrogen. The sodium titanate-manganate (III) mixture is treated with water to form sodium manganate (III), titanium dioxide and sodium hydroxide. Sodium manganate (III) and titanium dioxide are recycled following dissolution of sodium hydroxide in water.

  13. Utilizao de Mtodos Geoestatsticos de Krigeagem Ordinria e Krigeagem por Indicao na Interpolao de Dados Geoqumicos de Solos: Uma

    E-Print Network [OSTI]

    Camara, Gilberto

    Interpolação de Dados Geoquímicos de Solos: Uma Comparação WALDIZA BRAND�O 1 1 INPE - Instituto Nacional de. A Geoestatística é um desses modelos e sua base conceitual está fundamentada na teoria das variáveis regionalizadas a interpolação de dados geoquímicos de solo do depósito de Cu do Pojuca, situado na Província Mineral de Carajás

  14. Magnetically Driven Metal-Insulator Transition in NaOsO3

    SciTech Connect (OSTI)

    Calder, Stuart A [ORNL; Christianson, Andrew D [ORNL; Lumsden, Mark D [ORNL; Lang, Jonathan [Argonne National Laboratory (ANL); Stone, Matthew B [ORNL; McMorrow, D. F. [University College, London; Garlea, Vasile O [ORNL; Kim, Jong-Woo [Argonne National Laboratory (ANL); Schlueter, J. A. [Argonne National Laboratory (ANL); Shi, Y. G. [Chinese Academy of Sciences; Yamaura, K. [National Institute for Materials Science, Tsukuba, Japan; Sun, Y. S. [MANA; Tsujimoto, Y. [Kyoto University, Japan

    2012-01-01T23:59:59.000Z

    The metal-insulator transition (MIT) is one of the most dramatic manifestations of electron correlations in materials. Various mechanisms producing MITs have been extensively considered, including the Mott (electron localization via Coulomb repulsion), Anderson (localization via disorder), and Peierls (local- ization via distortion of a periodic one-dimensional lattice) mechanisms. One additional route to a MIT proposed by Slater, in which long-range magnetic order in a three dimensional system drives the MIT, has received relatively little attention. Using neutron and x-ray scattering we show that the MIT in NaOsO3 is coincident with the onset of long-range commensurate three dimensional magnetic order. While candidate materials have been suggested, our experimental methodology allows the first definitive demonstration of the long predicted Slater MIT.

  15. Genetic Evidence for the Phylogenetic Relationship between Na-Dene and Yeniseian Speakers

    E-Print Network [OSTI]

    Rubicz, Rohina; Melvin, Kristin L.; Crawford, Michael H.

    2002-12-01T23:59:59.000Z

    *O, MN*M, RH*R1, RH*R2, GM*AG, GM*AXG, KM*]) from three blood group systems and immunoglobulins. The first principal component accounts for 55.8% of the total variation and separates the Na-Dene (AP, DG, HA, and NV) from the Siberian populations (AE, CC..., EK, FN, KT, and 748 / RUBICZ ET AL. 0.3 NG FN '-. 0.2 - C..' 0 0.1 DG a) c HA *L) 0.0 -. ,---- ,---,,,,,---- ,,,,---- ,-- ,,,-,,,,,---,,,,,,,----............ AE NV CC -0.1 -EK * AP A~KT -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 Eigenvector 1 - 55.8% Figure 2...

  16. Crystal Chemistry of NaMgF3 Perovskite at High Pressure and Temperature

    SciTech Connect (OSTI)

    Chen,J.; Liu, H.; Martin, C.; Parise, J.; Weidner, D.

    2005-01-01T23:59:59.000Z

    The crystal structure of NaMgF{sub 3} perovskite (neighborite) has been studied at 4 GPa and temperatures up to 1000 C using the Rietveld structure-refinement method. In situ synchrotron X-ray powder diffraction data was collected using monochromatic radiation. The orthorhombic (Pbnm) to cubic (Pm{bar 3}m) transition was observed when the temperature increased from 900 to 1000 C. Structure refinements show that the ratio of polyhedral volumes of the A and B sites (V{sub A}/V{sub B}) of the orthorhombic phase increases with temperature, approaching the ideal value (5) for the cubic structure. However, this ratio becomes smaller at 4 GPa compared to the result from previous studies at the same temperature but ambient pressure, indicating that pressure makes it more difficult to transform from the orthorhombic phase to the cubic phase in this kind of perovskite.

  17. Total reflection infrared spectroscopy of water-ice and frozen aqueous NaCl solutions

    SciTech Connect (OSTI)

    Walker, Rachel L.; Searles, Keith; Willard, Jesse A.; Michelsen, Rebecca R. H., E-mail: RMichelsen@rmc.edu [Department of Chemistry, Randolph-Macon College, P.O. Box 5005, Ashland, Virginia 23005 (United States)] [Department of Chemistry, Randolph-Macon College, P.O. Box 5005, Ashland, Virginia 23005 (United States)

    2013-12-28T23:59:59.000Z

    Liquid-like and liquid water at and near the surface of water-ice and frozen aqueous sodium chloride films were observed using attenuated total reflection infrared spectroscopy (ATR-IR). The concentration of NaCl ranged from 0.0001 to 0.01 M and the temperature varied from the melting point of water down to 256 K. The amount of liquid brine at the interface of the frozen films with the germanium ATR crystal increased with salt concentration and temperature. Experimental spectra are compared to reflection spectra calculated for a simplified morphology of a uniform liquid layer between the germanium crystal and the frozen film. This morphology allows for the amount of liquid observed in an experimental spectrum to be converted to the thickness of a homogenous layer with an equivalent amount of liquid. These equivalent thickness ranges from a nanometer for water-ice at 260 K to 170 nm for 0.01 M NaCl close to the melting point. The amounts of brine observed are over an order of magnitude less than the total liquid predicted by equilibrium thermodynamic models, implying that the vast majority of the liquid fraction of frozen solutions may be found in internal inclusions, grain boundaries, and the like. Thus, the amount of liquid and the solutes dissolved in them that are available to react with atmospheric gases on the surfaces of snow and ice are not well described by thermodynamic equilibrium models which assume the liquid phase is located entirely at the surface.

  18. Multiple NaNbO3/Nb2O5 Heterostructure Nanotubes: A New Class of Ferroelectric/Semiconductor

    E-Print Network [OSTI]

    are created inside hollow Nb2O5 nanotubes, forming a novel class of multiple ferroelectric (NaNbO3 multifunctional ferroelectric/semiconductor devices. The scientific and technological interest in tubular nano within the nanotube's hollow. Herein, we employed a nanotube-confined growth strategy for the one

  19. Journal of Power Sources 165 (2007) 509516 Direct NaBH4/H2O2 fuel cells

    E-Print Network [OSTI]

    Carroll, David L.

    2007-01-01T23:59:59.000Z

    Journal of Power Sources 165 (2007) 509­516 Direct NaBH4/H2O2 fuel cells George H. Mileya,e,, Nie online 5 December 2006 Abstract A fuel cell (FC) using liquid fuel and oxidizer is under investigation. H Published by Elsevier B.V. Keywords: Fuel cell; Hydrogen peroxide; Regenerative fuel cell; Sodium

  20. Role of Protein Kinase C in the Signal Pathways That Link Na /K -ATPase to ERK1/2*

    E-Print Network [OSTI]

    Askari, Amir

    Role of Protein Kinase C in the Signal Pathways That Link Na /K -ATPase to ERK1/2* Received, transactivation of EGFR, and activation of the Ras/ ERK1/2 cascade. To determine the role of protein kinase C (PKC, but not toxic, effects of ouabain in rat cardiac ventricles. Ouabain-induced activation of ERK1/2 was blocked

  1. Spectral and temporal structures of high-order harmonic generation of Na in intense mid-ir laser fields

    E-Print Network [OSTI]

    Chu, Shih-I

    and efficient propagation of the wave function in space and time. Excellent agreement of the HHG spectrum into different HHG mechanisms in different energy regimes of Na atoms at long wavelengths. DOI: 10.1103/Phys,2 . The generation of har- monics in rare-gas atoms that extend up to orders of about 300 well within the water

  2. Q value of the superallowed decay of Mg-22 and the calibration of the Na-21(p,gamma) experiment

    E-Print Network [OSTI]

    Savard, G.; Clark, JA; Buchinger, F.; Crawford, JE; Gulick, S.; Hardy, John C.; Hecht, AA; Iacob, VE; Lee, JKP; Levand, AF; Lundgren, BF; Scielzo, ND; Sharma, KS; Tanihata, I.; Towner, IS; Trimble, W.; Wang, JC; Wang, Y.; Zhou, Z.

    2004-01-01T23:59:59.000Z

    The masses of the radioactive nuclei Mg-22 and Na-22 have been measured with the Canadian Penning trap on-line mass spectrometer to a precision of 3x10(-8) and 1x10(-8), respectively. A Q(EC) value of 4124.39(73) keV for the superallowed beta decay...

  3. UC DAVIS CUPA SELF AUDIT CHECKLIST 1. Are chemical hazardous waste containers disposed of through Yes No NA

    E-Print Network [OSTI]

    Kolner, Brian H.

    UC DAVIS CUPA SELF AUDIT CHECKLIST 1. Are chemical hazardous waste containers disposed of through days if 1 pound or 1 quart of acutely hazardous waste is accumulated? (Prudent practice is to dispose of within 90 days). 2. Does each chemical hazardous waste container have a UC Davis Yes Ë No Ë NA Ë

  4. Q value of the superallowed decay of Mg-22 and the calibration of the Na-21(p,gamma) experiment 

    E-Print Network [OSTI]

    Savard, G.; Clark, JA; Buchinger, F.; Crawford, JE; Gulick, S.; Hardy, John C.; Hecht, AA; Iacob, VE; Lee, JKP; Levand, AF; Lundgren, BF; Scielzo, ND; Sharma, KS; Tanihata, I.; Towner, IS; Trimble, W.; Wang, JC; Wang, Y.; Zhou, Z.

    2004-01-01T23:59:59.000Z

    The masses of the radioactive nuclei Mg-22 and Na-22 have been measured with the Canadian Penning trap on-line mass spectrometer to a precision of 3x10(-8) and 1x10(-8), respectively. A Q(EC) value of 4124.39(73) keV for the superallowed beta decay...

  5. Solar Energy Materials & Solar Cells 58 (1999) 199}208 The behaviour of Na implanted into Mo thin "lms

    E-Print Network [OSTI]

    Rockett, Angus

    Solar Energy Materials & Solar Cells 58 (1999) 199}208 The behaviour of Na implanted into Mo thin, As ngstro( m Solar Center, P.O. Box 534, SE-751 21 Uppsala, Sweden Department of Materials Science Mo thin "lms used as back contacts for Cu(In,Ga)Se solar cells. The samples were analysed

  6. Structure and luminescence properties of silver-doped NaY(PO{sub 3}){sub 4} crystal

    SciTech Connect (OSTI)

    El Masloumi, M. [CNRS, Universite Bordeaux, ICMB, 87 Avenue du Dr A. Schweitzer, Pessac F-33608 (France); Faculte des Sciences Semlalia, LC S M, Marrakech, Maroc (Morocco); Jubera, V.; Pechev, S.; Chaminade, J.P. [CNRS, Universite Bordeaux, ICMB, 87 Avenue du Dr A. Schweitzer, Pessac F-33608 (France); Videau, J.J. [CNRS, Universite Bordeaux, ICMB, 87 Avenue du Dr A. Schweitzer, Pessac F-33608 (France)], E-mail: videau@icmcb-bordeaux.cnrs.fr; Mesnaoui, M.; Maazaz, M. [Faculte des Sciences Semlalia, LC S M, Marrakech, Maroc (Morocco); Moine, B. [Universite Claude -Bernard, Lyon 1, L PCM L, 10 rue A.M. Ampere, Villeurbanne F-69622 (France)

    2008-11-15T23:59:59.000Z

    Single crystals of NaY(PO{sub 3}){sub 4} and Ag{sub 0.07}Na{sub 0.93}Y(PO{sub 3}){sub 4} have been synthesized by flux method. These new compounds turned out to be isostructural to NaLn(PO{sub 3}){sub 4}, with Ln=La, Nd, Gd and Er [monoclinic, P2{sub 1}/n, a=7.1615(2) A, b=13.0077(1) A, c=9.7032 (3) A, {beta}=90.55 (1){sup o}, V=903.86(14) A{sup 3} and Z=4]. The structure is based upon long polyphosphate chains running along the shortest unit-cell direction and made up of PO{sub 4} tetrahedra sharing two corners, linked to yttrium and sodium polyhedra. Infrared and Raman spectra at room temperature confirms this atomic arrangement. The luminescence of silver ions was reported in metaphosphate of composition Ag{sub 0.07}Na{sub 0.93}Y(PO{sub 3}){sub 4}. One luminescent centre was detected and assigned to single Ag{sup +} ions. - Graphical abstract: The presence of only one Ag{sup +} luminescence centre is the result from the perfect isolation (Ag{sup +}-Ag{sup +}=5.90 A) of each oxygenated silver site (AgO{sub 8} polyhedra) sharing two faces and one corner with three yttrium polyhedra.

  7. Surface Tensions in NaCl-Water-Air Systems from MD Simulations Ranjit Bahadur, Lynn M. Russell,*, and Saman Alavi

    E-Print Network [OSTI]

    Russell, Lynn

    Surface Tensions in NaCl-Water-Air Systems from MD Simulations Ranjit Bahadur, Lynn M. Russell, Ottawa, Ontario K1A 0R6, Canada ReceiVed: July 9, 2007; In Final Form: July 30, 2007 Surface tensions to the surface tension, while the energy-integral and test area methods provide direct estimates. At 1 atm

  8. Quadruple-layered perovskite (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13}

    SciTech Connect (OSTI)

    Kitada, A.; Tsujimoto, Y.; Yamamoto, T. [Department of Energy and Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University, Nishikyo, Kyoto 615-8510 (Japan); Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan); Kobayashi, Y. [Department of Energy and Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University, Nishikyo, Kyoto 615-8510 (Japan); Narumi, Y. [Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581 (Japan); Institute for Materials Research, Tohoku University, Katahira 2-1-1, Sendai 980-8577 (Japan); Kindo, K. [Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581 (Japan); Aczel, A.A.; Luke, G.M. [Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S 4M1 (Canada); Uemura, Y.J. [Department of Physics, Columbia University, New York, NY 10027 (United States); Kiuchi, Y.; Ueda, Y. [Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581 (Japan); Yoshimura, K. [Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan); Ajiro, Y. [Department of Energy and Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University, Nishikyo, Kyoto 615-8510 (Japan); Kageyama, H., E-mail: kage@scl.kyoto-u.ac.jp [Department of Energy and Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University, Nishikyo, Kyoto 615-8510 (Japan); Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan); Institute for Integrated Cell-Material Sciences, Kyoto University, Sakyo, Kyoto 606-8501 (Japan); CREST, Japan Science and Technology Agency, Kawaguchi 332-0012 (Japan)

    2012-01-15T23:59:59.000Z

    We will present the synthesis, structure and magnetic properties of a new quadruple-layered perovskite (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13}. Through a topotactic ion-exchange reaction with CuCl{sub 2}, the precursor RbCa{sub 2}NaNb{sub 4}O{sub 13} presumably having an incoherent octahederal tliting changes into (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13} with a 2a{sub p} Multiplication-Sign 2a{sub p} Multiplication-Sign 2c{sub p} superstructure (tetragonal; a=7.73232(5) A, c=39.2156(4) A). The well-defined superstructure for the ion-exchanged product should be stabilized by the inserted CuCl{sub 4}O{sub 2} octahedral layers that firmly connect with neighboring perovskite layers. Magnetic studies show the absence of long-range magnetic ordering down to 2 K despite strong in-plane interactions. Aleksandrov Prime s group theory and Rietveld refinement of synchrotron X-ray diffraction data suggest the structure to be of I4/mmm space group with in-phase tilting along the a and b axes, a two-tilt system (++0). - Graphical Abstract: We present a quadruple-layered copper oxyhalide (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13} synthesized through a topotactic ion-exchange reaction of RbCa{sub 2}NaNb{sub 4}O{sub 13} with CuCl{sub 2}. The compound has a well-defined superstructure. Magnetic studies suggest the absence of magnetic order even at 2 K. Highlights: Black-Right-Pointing-Pointer (CuCl)Ca{sub 2}NaNb{sub 4}O{sub 13} was prepared by ion-exchange reaction of RbCa{sub 2}NaNb{sub 4}O{sub 13} with CuCl{sub 2}. Black-Right-Pointing-Pointer Compound has a 2a{sub p} Multiplication-Sign 2a{sub p} Multiplication-Sign 2c{sub p} superstructure (tetragonal; a=7.73 A, c=39.21 A). Black-Right-Pointing-Pointer Such a well-defined superstructure was not observed in the precursor compound. Black-Right-Pointing-Pointer Aleksandrov Prime s theory and Rietveld study suggest a (++0) octahedral tilting (I4/mmm). Black-Right-Pointing-Pointer Magnetic studies revealed the absence of magnetic order down to 2 K.

  9. Measurement of the Low Energy Nuclear Response in NaI(Tl) Crystals for Use in Dark Matter Direct Detection Experiments

    E-Print Network [OSTI]

    Stiegler, Tyana Michele

    2013-07-30T23:59:59.000Z

    The response of low energy nuclear recoil in NaI(Tl) is investigated in the following experiment. Such detectors have been used recently to search for evidence of dark matter in the form of weakly interacting massive particles (WIMPs). Na...

  10. Unique properties of ?-NaFeO{sub 2}: De-intercalation of sodium via hydrolysis and the intercalation of guest molecules into the extract solution

    SciTech Connect (OSTI)

    Monyoncho, Evans; Bissessur, Rabin, E-mail: rabissessur@upei.ca

    2013-07-15T23:59:59.000Z

    Graphical abstract: - Highlights: • Facile de-intercalating Na from NaFeO2. • Formation of layered sodium hydrogen carbonate hydrate. • Intercalation chemistry on layered sodium hydrogen carbonate hydrate. - Abstract: We report on a versatile method for the de-intercalation of Na from ?-NaFeO{sub 2} by using water to produce ?-Na{sub 1?x}FeO{sub 2}, where x ? 1. This de-intercalation technique provides an excellent route to ion exchange Na with other metal ions in ?-NaFeO{sub 2}. The hydrolysis mechanism is provided. We show that the extracted solution captures CO{sub 2} from the atmosphere leading to the formation of sodium hydrogen carbonate hydrate crystals. The lamellar structure of the hydrate crystals was confirmed by powder X-ray diffraction, and were found Na-deficient via elemental analysis. Intercalation of guest molecules such as polymers, alcohols, and inorganic ions into the gallery space of the newly formed sodium hydrogen carbonate hydrate crystals was demonstrated by the use of powder X-ray diffraction technique. The reported materials were also characterized by Mössbauer spectroscopy, thermogravimetric analysis, differential scanning calorimetry, infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy.

  11. N/Z and N/A dependence of balance energy as a probe of symmetry energy in heavy-ion collisions

    E-Print Network [OSTI]

    Aman D. Sood

    2011-07-21T23:59:59.000Z

    We study the N/Z and N/A dependence of balance energy (E$_{bal}$) for isotopic series of Ca having N/Z (N/A) varying from 1.0 to 2.0 (0.5 to 0.67). We show that the N/Z (N/A) dependence of E$_{bal}$ is sensitive to symmetry energy and its density dependence at densities higher than saturation density and is insensitive towards the isospin dependence of nucleon-nucleon (nn) cross section and Coulomb repulsion. We also study the effect of momentum dependent interactions (MDI) on the N/Z (N/A) dependence of E$_{bal}$. We find that although MDI influences the E$_{bal}$ drastically, the N/Z (N/A) dependence of E$_{bal}$ remains unchanged on inclusion of MDI.

  12. Examination of Na-Doped Mo Sputtering for CIGS Devices: Cooperative Research and Development Final Report, CRADA Number CRD-10-375

    SciTech Connect (OSTI)

    Repins, I.

    2012-01-01T23:59:59.000Z

    This work has investigated the use of Na doped Mo (MONA) sputtering targets for use in preparing CIGS devices. The Mo:Na material is doped to about 3% Na by weight, implying that a 40 nm layer on top of the standard Mo contact contains sufficient Na to dope a 2.5 ..mu..m CIGS film. The ability to control Na doping independent of both CIGS processing conditions and adhesion is an important gain for industry and research. Manufacturers gain a route to increased manufacturability and performance, while NREL researchers gain a tightened performance distribution of devices and increased process flexibility. Our immediate partner in this work, the Climax Molybdenum Technology Center, gains validation of their product.

  13. FeO-containing K-Na-rich silicate (`KNSF': SiO2 64.3 wt%, K2O 18.6 wt%, Na2O 12.4 wt%, FeO 4.6 wt%) with a low melting temperature. The experiments at the Australian

    E-Print Network [OSTI]

    Waxman, David

    FeO-containing K-Na-rich silicate (`KNSF': SiO2 64.3 wt%, K2O 18.6 wt%, Na2O 12.4 wt%, FeO 4.6 wt and equilibrated with the FeO- containing K-Na-rich silicate. The silicate material was prepared from a mixture drilled out of the KNSF silicate glass and were inserted into capsules fabricated from the Pd90Fe10 and Pt

  14. Spin-lozenge thermodynamics and magnetic excitations in Na3RuO4

    SciTech Connect (OSTI)

    Haraldsen, Jason T [ORNL; Stone, Matthew B [ORNL; Lumsden, Mark D [ORNL; Barnes, Ted {F E } [ORNL; Jin, Rongying [ORNL; Taylor, J. W. [ISIS Facility, Rutherford Appleton Laboratory; Fernandez-Alonso, F [ISIS Facility, Rutherford Appleton Laboratory

    2009-01-01T23:59:59.000Z

    We report inelastic and elastic neutron scattering, magnetic susceptibility, and heat capacity measurements of polycrystalline sodium ruthenate (Na3RuO4). Previous work suggests this material consists of isolated tetramers of S = 3/2 Ru5+ ions in a so-called lozenge configuration. Using a Heisenberg antiferromagnet Hamiltonian, we analytically determine the energy eigenstates for general spin S. From this model, the neutron scattering cross-sections for excitations associated with spin-3/2 tetramer configurations is determined. Comparison of magnetic susceptibility and inelastic neutron scattering results shows that the proposed lozenge model is not distinctly supported, but provides evidence that the system may be better described as a pair of non-interacting inequivalent dimers, i.e double dimers. However, the existence of long-range magnetic order below Tc ? 28 K immediately questions such a description. Although no evidence of the lozenge model is observed, future studies on single crystals may further clarify the appropriate magnetic Hamiltonian.

  15. New results on direct CP violation in charged kaon decays by NA48/2

    E-Print Network [OSTI]

    G. Lamanna

    2006-05-15T23:59:59.000Z

    The NA48/2 result, based on the data collected during the 2003 run, on direct CP violation in $K^{\\pm}\\to\\pi^{\\pm}\\pi^0\\pi^0$ decay is presented. The main goal of the experiment is to reach a sensitivity at level of $10^{-4}$ in the measurement of the charge asymmetry parameter $A_g=(g^+-g^-)/(g^++g^-)$, where $g$ is the \\emph{linear slope} of the Dalitz plot in the $K\\to 3\\pi$ decay. Thanks to the simultaneous collection of the two kaon charges and to the high resolution of the main sub-detectors, the systematics uncertainties are kept under the statistical error level. The experimental procedure, the analysis technique and the main systematics are discussed to present the final result $$ A_g=(1.8\\pm2.6)\\times 10^{-4} $$ This result based on more than $45\\cdot10^6$ events, correspondig to one half of the whole two year data taking, is about an order of magnitude more precise with respect to the previous measurement.

  16. Comparison of PVT And NaI(Tl) Scintillators for Vehicle Portal Monitor Applications

    SciTech Connect (OSTI)

    Siciliano, Edward R.; Ely, James H.; Kouzes, Richard T.; Milbrath, Brian D.; Schweppe, John E.; Stromswold, David C.

    2005-09-21T23:59:59.000Z

    The demand for radiation portal monitor (RPM) systems has increased, and their capabilities are being further scrutinized as they are being applied to the task of detecting nuclear weapons, special nuclear material, and radiation dispersal device materials that could appear at borders. The requirements and constraints on RPM systems deployed at high-volume land border crossings are significantly different from those at weapons facilities and steel recycling plants, where RPMs have been historically employed. In this new homeland security application, RPM systems must rapidly detect localized sources of radiation with a very high detection probability and low false-alarm rate, while screening “100%” of the traffic without impeding the flow of commerce. In light of this new DHS application, this report re-examines the capabilities of two popular gamma-ray-detector materials to meet the needs of RPM systems. This is accomplished by using experimental data and computer simulations together with practical deployment experience to assess the capabilities of currently available polyvinyl-toluene and NaI(Tl) gamma detectors. (PIET-43741-TM-057)

  17. Non-specific binding of Na$^+$ and Mg$^{2+}$ to RNA determined by force spectroscopy methods

    E-Print Network [OSTI]

    C. V. Bizarro; A. Alemany; F. Ritort

    2012-06-20T23:59:59.000Z

    RNA duplex stability depends strongly on ionic conditions, and inside cells RNAs are exposed to both monovalent and multivalent ions. Despite recent advances, we do not have general methods to quantitatively account for the effects of monovalent and multivalent ions on RNA stability, and the thermodynamic parameters for secondary structure prediction have only been derived at 1M [Na$^+$]. Here, by mechanically unfolding and folding a 20 bp RNA hairpin using optical tweezers, we study the RNA thermodynamics and kinetics at different monovalent and mixed monovalent/Mg$^{2+}$ salt conditions. We measure the unfolding and folding rupture forces and apply Kramers theory to extract accurate information about the hairpin free energy landscape under tension at a wide range of ionic conditions. We obtain non-specific corrections for the free energy of formation of the RNA hairpin and measure how the distance of the transition state to the folded state changes with force and ionic strength. We experimentally validate the Tightly Bound Ion model and obtain values for the persistence length of ssRNA. Finally, we test the approximate rule by which the non-specific binding affinity of divalent cations at a given concentration is equivalent to that of monovalent cations taken at 100 fold that concentration for small molecular constructs.

  18. Comparison of LaBr3:Ce and NaI(Tl) Scintillators for Radio-Isotope Identification Devices

    SciTech Connect (OSTI)

    Milbrath, Brian D.; Choate, Bethany J.; Fast, Jim E.; Hensley, Walter K.; Kouzes, Richard T.; Schweppe, John E.

    2006-07-31T23:59:59.000Z

    Lanthanum halide (LaBr3:Ce) scintillators offer significantly better resolution (<3 percent at 662 kilo-electron volt [keV]) relative to sodium iodide (NaI(Tl)) and have recently become commercially available in sizes large enough for the hand-held radio-isotope identification device (RIID) market. There are drawbacks to lanthanum halide detectors, however. These include internal radioactivity that contributes to spectral counts and a low-energy response that can cause detector resolution to be lower than that of NaI(Tl) below 100 keV. To study the potential of this new material for RIIDs, we performed a series of measurements comparing a 1.5?1.5 inch LaBr?3:Ce detector with an Exploranium GR 135 RIID, which contains a 1.5-2.2 inch NaI(Tl) detector. Measurements were taken for short time frames, as typifies RIID usage. Measurements included examples of naturally occurring radioactive material (NORM), typically found in cargo, and special nuclear materials. Some measurements were noncontact, involving short distances or cargo shielding scenarios. To facilitate direct comparison, spectra from the different detectors were analyzed with the same isotope identification software (ORTEC ScintiVision TM). In general, the LaBr3:Ce detector was able to find more peaks and find them faster than the NaI(Tl) detector. To the same level of significance, the LaBr3:Ce detector was usually two to three times faster. The notable exception was for 40K containing NORM where interfering internal contamination in the LaBr3:Ce detector exist. NaI(Tl) consistently outperformed LaBr3:Ce for this important isotope. LaBr3:Ce currently costs much more than NaI(Tl), though this cost-difference is expected to diminish (but not completely) with time. As is true of all detectors, LaBr3:Ce will need to be gain-stabilized for RIID applications. This could possibly be done using the internal contaminants themselves. It is the experience of the authors that peak finding software in RIIDs needs to be improved, regardless of the detector material.

  19. Chrome Deposit Corporation and the University of Delaware IAC...

    Broader source: Energy.gov (indexed) [DOE]

    of Delaware grad student. | Image courtesy of UD. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs What are the key facts? The facility...

  20. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Gao, Guang R.

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture with Percolation Adeline Jacquet, Vincent Janot, R. Govindarajan, Clement Leung, Guang Gao, Thomas Sterling CAPSL

  1. Treatment of EBR-I NaK mixed waste at Argonne National Laboratory and subsequent land disposal at the Idaho National Engineering and Environmental Laboratory.

    SciTech Connect (OSTI)

    Herrmann, S. D.; Buzzell, J. A.; Holzemer, M. J.

    1998-02-03T23:59:59.000Z

    Sodium/potassium (NaK) liquid metal coolant, contaminated with fission products from the core meltdown of Experimental Breeder Reactor I (EBR-I) and classified as a mixed waste, has been deactivated and converted to a contact-handled, low-level waste at Argonne's Sodium Component Maintenance Shop and land disposed at the Radioactive Waste Management Complex. Treatment of the EBR-I NaK involved converting the sodium and potassium to its respective hydroxide via reaction with air and water, followed by conversion to its respective carbonate via reaction with carbon dioxide. The resultant aqueous carbonate solution was solidified in 55-gallon drums. Challenges in the NaK treatment involved processing a mixed waste which was incompletely characterized and difficult to handle. The NaK was highly radioactive, i.e. up to 4.5 R/hr on contact with the mixed waste drums. In addition, the potential existed for plutonium and toxic characteristic metals to be present in the NaK, resultant from the location of the partial core meltdown of EBR-I in 1955. Moreover, the NaK was susceptible to degradation after more than 40 years of storage in unmonitored conditions. Such degradation raised the possibility of energetic exothermic reactions between the liquid NaK and its crust, which could have consisted of potassium superoxide as well as hydrated sodium/potassium hydroxides.

  2. Analysis of dust samples collected from spent nuclear fuel interim storage containers at Hope Creek, Delaware, and Diablo Canyon, California.

    SciTech Connect (OSTI)

    Bryan, Charles R.; Enos, David George

    2014-07-01T23:59:59.000Z

    Potentially corrosive environments may form on the surface of spent nuclear fuel dry storage canisters by deliquescence of deposited dusts. To assess this, samples of dust were collected from in-service dry storage canisters at two near-marine sites, the Hope Creek and Diablo Canyon storage installations, and have been characterized with respect to mineralogy, chemistry, and texture. At both sites, terrestrially-derived silicate minerals, including quartz, feldspars, micas, and clays, comprise the largest fraction of the dust. Also significant at both sites were particles of iron and iron-chromium metal and oxides generated by the manufacturing process. Soluble salt phases were minor component of the Hope Creek dusts, and were compositionally similar to inland salt aerosols, rich in calcium, sulfate, and nitrate. At Diablo Canyon, however, sea-salt aerosols, occurring as aggregates of NaCl and Mg-sulfate, were a major component of the dust samples. The seasalt aerosols commonly occurred as hollow spheres, which may have formed by evaporation of suspended aerosol seawater droplets, possibly while rising through the heated annulus between the canister and the overpack. The differences in salt composition and abundance for the two sites are attributed to differences in proximity to the open ocean and wave action. The Diablo Canyon facility is on the shores of the Pacific Ocean, while the Hope Creek facility is on the shores of the Delaware River, several miles from the open ocean.

  3. Role of the Na{sup +}/H{sup +} exchanger on the development of diabetes mellitus and its chronic complications

    SciTech Connect (OSTI)

    Sun, Yan-Ming [Department of Cardiac Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China)] [Department of Cardiac Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China); Su, Ying [Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China)] [Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China); Li, Jia; Tian, Ye [Department of Cardiac Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China)] [Department of Cardiac Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China); Wang, Lan-Feng, E-mail: wlfccu@126.com [Department of Cardiac Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China)] [Department of Cardiac Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin 150001 (China)

    2012-10-19T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer NHE protect against intracellular hydrogen overload. Black-Right-Pointing-Pointer NHE protect {beta}-cells against strong acidification. Black-Right-Pointing-Pointer NHE inhibitors improve myocardial ischemia and reperfusion. -- Abstract: Micro- and macrovascular complications are the main cause of morbidity and mortality in diabetes mellitus. The Na{sup +}/H{sup +} exchanger (NHE) is a family of proteins which exchange Na{sup +} for H{sup +} according to their concentration gradients in an electroneutral manner. The exchanger also plays a key role in several other cellular functions including proliferation, differentiation, apoptosis, migration, and cytoskeletal organization. Since not much is known on the relationship between NHE and diabetes mellitus, this review outlines the contribution of NHE to chronic complications of diabetes mellitus, such as diabetic nephropathy; diabetic cardiomyopathy.

  4. L'identit gomtrie variable des jeunes hommes Kali'na de Mana (Guyane franaise) : sur quelle mesure ?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    disperse au Brésil, au Surinam, jusqu'au Guyana et au Venezuela (Ethnies 1985 :14). En 1958, la population'intérieur et ethnies du littoral. Les populations Kali'na1 du littoral, associées avec les populations Wayana française ­ de 670 à 2000 personnes en 1990. A ce chiffre s'ajoute les populations déplacées en 1995

  5. Explorando Tecnicas de Reduc~ao de Base de Dados na Minerac~ao de Padr~oes Sequenciais

    E-Print Network [OSTI]

    Antwerpen, Universiteit

    Explorando T´ecnicas de Reduc¸~ao de Base de Dados na Minerac¸~ao de Padr~oes Seq¨uenciais Ciro mechanisms. Resumo. Neste trabalho, com o objetivo de reduzir o custo de diversas lei- turas da base de dados iterativos de extrac¸~ao de padr~oes seq¨uenciais, prop~oe-se a reduc¸~ao progressiva da base de dados ao

  6. NaREC Offshore and Drivetrain Test Facility Collaboration: Cooperative Research and Development Final Report, CRADA Number CRD-04-140

    SciTech Connect (OSTI)

    Musial, W.

    2014-08-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) and the National Renewable Energy Centre (NaREC) in the United Kingdom (UK) have a mutual interest in collaborating in the development of full-scale offshore wind energy and drivetrain testing facilities. NREL and NaREC will work together to share resources and experiences in the development of future wind energy test facilities. This Cooperative Research and Development Agreement (CRADA) includes sharing of test protocols, infrastructure cost data, test plans, pro forma contracting instruments, and safe operating strategies. Furthermore, NREL and NaREC will exchange staff for training and development purposes.

  7. Extremely NA and CL Rich Chondrule AL3509 from the Allende Meteorite

    SciTech Connect (OSTI)

    Wasserburg, G J; Hutcheon, I D; Aleon, J; Ramon, E C; Krot, A N; Nagashima, K; Brearley, A J

    2011-04-07T23:59:59.000Z

    We report on the mineralogy, petrology, chemistry, oxygen isotopes, {sup 26}Al-{sup 26}Mg and {sup 36}Cl-{sup 36}S isotope systematics of the Allende chondrule Al3509 discovered and described by [1] and [2]. This spherical object ({approx}1cm {phi}) contains {approx}10% Na and 1% Cl, and nearly pure {sup 129}Xe [({sup 129}Xe/{sup 127}I) = 1.1 x 10{sup -4} (3)]. This high enrichment in halogens makes it of interest in searching for radiogenic {sup 36}S from {sup 36}Cl (t{sub 1/2} {approx} 0.3 Ma) decay. While there is strong evidence for the presence of {sup 36}Cl in sodalite and wadalite in CV CAIs [4,5], some sodalites show no evidence for excesses of {sup 36}S ({sup 36}S*). In contrast, high inferred initial {sup 36}Cl/{sup 35}Cl = 2 x 10{sup -5} has been found in wadalite from the Allende CAI AJEF [5]. The observed {sup 36}S excesses in sodalite are not correlated with radiogenic {sup 26}Mg, decay product of {sup 26}Al (t{sub 1/2} {approx} 0.72 Ma) [4]. From the inferred initial {sup 36}Cl/{sup 35}Cl ratios and consideration of both AGB and SNe stellar sources, {sup 36}Cl must be the product of charged particle irradiation within the early solar system. However, neither the specific nuclear production mechanism nor the irradiation site have been identified. Both sodalite and wadalite are found as late stage alteration products of CAIs together with grossular, monticellite, Al-rich pyroxene, wollastonite, nepheline, ferroan olivine, and ferroan pyroxenes. This late-stage alteration has been found to extensively change some CAIs in Allende, but clear residues of spinel, hibonite and Wark-Lovering rims are recognizable remnants of the original CAIs. The nature of the widespread volatile alteration process as well as that of the fluid phase remain controversial.

  8. The electrorheology of suspensions consisting of Na-Fluorohectorite synthetic clay particles in silicon oil

    E-Print Network [OSTI]

    Y. Méheust; K. P. S. Parmar; B. Schjelderupsen; J. O. Fossum

    2010-02-01T23:59:59.000Z

    Under application of an electric field greater than a triggering electric field $E_c \\sim 0.4$ kV/mm, suspensions obtained by dispersing particles of the synthetic clay fluoro-hectorite in a silicon oil, aggregate into chain- and/or column-like structures parallel to the applied electric field. This micro-structuring results in a transition in the suspensions' rheological behavior, from a Newtonian-like behavior to a shear-thinning rheology with a significant yield stress. This behavior is studied as a function of particle volume fraction and strength of the applied electric field, $E$. The steady shear flow curves are observed to scale onto a master curve with respect to $E$, in a manner similar to what was recently found for suspensions of laponite clay [42]. In the case of Na-fluorohectorite, the corresponding dynamic yield stress is demonstrated to scale with respect to $E$ as a power law with an exponent $\\alpha \\sim 1.93$, while the static yield stress inferred from constant shear stress tests exhibits a similar behavior with $\\alpha \\sim 1.58$. The suspensions are also studied in the framework of thixotropic fluids: the bifurcation in the rheology behavior when letting the system flow and evolve under a constant applied shear stress is characterized, and a bifurcation yield stress, estimated as the applied shear stress at which viscosity bifurcation occurs, is measured to scale as $E^\\alpha$ with $\\alpha \\sim 0.5$ to 0.6. All measured yield stresses increase with the particle fraction $\\Phi$ of the suspension. For the static yield stress, a scaling law $\\Phi^\\beta$, with $\\beta = 0.54$, is found. The results are found to be reasonably consistent with each other. Their similarities with-, and discrepancies to- results obtained on laponite-oil suspensions are discussed.

  9. Flow Components in a NaK Test Loop Designed to Simulate Conditions in a Nuclear Surface Power Reactor

    SciTech Connect (OSTI)

    Polzin, Kurt A.; Godfroy, Thomas J. [NASA Marshall Space Flight Center Propulsion Research and Technology Applications Branch/ER24, MSFC, AL 35812 (United States)

    2008-01-21T23:59:59.000Z

    A test loop using NaK as the working fluid is presently in use to study material compatibility effects on various components that comprise a possible nuclear reactor design for use on the lunar surface. A DC electromagnetic (EM) pump has been designed and implemented as a means of actively controlling the NaK flow rate through the system and an EM flow sensor is employed to monitor the developed flow rate. These components allow for the matching of the flow rate conditions in test loops with those that would be found in a full-scale surface-power reactor. The design and operating characteristics of the EM pump and flow sensor are presented. In the EM pump, current is applied to a set of electrodes to produce a Lorentz body force in the fluid. A measurement of the induced voltage (back-EMF) in the flow sensor provides the means of monitoring flow rate. Both components are compact, employing high magnetic field strength neodymium magnets thermally coupled to a water-cooled housing. A vacuum gap limits the heat transferred from the high temperature NaK tube to the magnets and a magnetically-permeable material completes the magnetic circuit. The pump is designed to produce a pressure rise of 34.5 kPa, and the flow sensor's predicted output is roughly 20 mV at the loop's nominal flow rate of 0.114 m{sup 3}/hr.

  10. Materials corrosion in molten LiF-NaF-KF eutectic salt under different reduction-oxidation conditions

    SciTech Connect (OSTI)

    Sellers, R. S. [Dept. of Engineering Physics, Univ. of Wisconsin - Madison (United States); 1500 Engineering Dr., Madison WI 53711 (United States); Cheng, W. J. [Dept. of Engineering Physics, Univ. of Wisconsin - Madison (United States); National Taiwan Univ. of Science and Technology, Taiwan (China); Anderson, M. H.; Sridharan, K.; Wang, C. J.; Allen, T. R. [Dept. of Engineering Physics, Univ. of Wisconsin - Madison (United States)

    2012-07-01T23:59:59.000Z

    Molten fluoride salts such as FLiNaK (LiF-NaF-KF: 46.5-11.5-42 mol %) have been proposed for use as secondary reactor coolants, media for transfer of high temperature process heat from nuclear reactors to chemical plants, and for concentrated solar power thermal energy storage. In molten fluoride salts, passive oxide films are chemically unstable, and corrosion is driven largely by the thermodynamically driven dissolution of alloying elements into the molten salt environment. Two alloys, Hastelloy{sup R} N and 316L stainless steel were exposed to molten FLiNaK salt in a 316L stainless steel crucible under argon cover gas for 1000 hours at 850 deg. C. Graphite was present in some of the crucibles with the goal of studying corrosion behavior of relevant reactor material combinations. In addition, a technique to reduce alloy corrosion through modification of the reduction-oxidation state was tested by the inclusion of zirconium to the system. Corrosion of 316L stainless steel was noted to occur primarily through surface depletion of chromium, an effect that was enhanced by the presence of graphite. Hastelloy{sup R} N experienced weight gain through electrochemical plating of corrosion products derived from the 316L stainless steel crucible. In the presence of zirconium, both alloys gained weight through plating of zirconium and as a result formed intermetallic layers. (authors)

  11. Hydrothermal synthesis and luminescent properties of NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphor

    SciTech Connect (OSTI)

    Li Linlin; Zi Wenwen; Li Guanghuan; Lan Shi; Ji Guijuan [College of Chemistry, Jilin University, Changchun 130026 (China); Gan Shucai, E-mail: gansc@jlu.edu.cn [College of Chemistry, Jilin University, Changchun 130026 (China); Zou Haifeng [College of Chemistry, Jilin University, Changchun 130026 (China); Xu Xuechun [College of Earth Sciences, Jilin University, Changchun 130026 (China)

    2012-07-15T23:59:59.000Z

    Pompon-like NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphors have been successfully prepared via a hydrothermal method using ammonia as pH value regulator. The hydrothermal process was carried out under aqueous condition without the use of any organic solvent, surfactant, and catalyst. The experimental results demonstrate that the obtained NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphor powders are single-phase scheelite structure with tetragonal symmetry. Moreover, the phosphor under the excitation of 390 and 456 nm exhibited blue emission (486 nm) and yellow emission (574 nm), corresponding to the {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 15/2} transition and {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 13/2} transition of Dy{sup 3+} ions, respectively. In addition, the yellow-to-blue emission intensity ratio (Y/B) can be changed with the doped concentration of Dy{sup 3+} ions. All chromaticity coordinates of the obtained NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphors are located in the white-light region. The results indicate that this kind of phosphor may has potential applications in the fields of near UV-excited and blue-excited white LEDs. - Graphical abstract: It can be seen from the SEM images that a pompon-like shape was obtained with an average diameter of about 1 {mu}m, and it is composed of many nanoflakes. Highlights: Black-Right-Pointing-Pointer Pompon-like NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} phosphors have been successfully prepared via a hydrothermal method. Black-Right-Pointing-Pointer Blue emission at 486 nm and yellow emission at 574 nm were obtained from the samples. Black-Right-Pointing-Pointer The yellow-to-blue emission intensity ratio (Y/B) can be changed with the doped concentration of Dy{sup 3+} ions. Black-Right-Pointing-Pointer NaLa(MoO{sub 4}){sub 2}:Dy{sup 3+} can be efficiently excited by the blue light and the near ultraviolet light.

  12. The elastic and piezoelectric properties of tungsten bronze ferroelectric crystals ,,Sr0.7Ba0.3...2NaNb5O15 and ,,Sr0.3Ba0.7...2NaNb5O15

    E-Print Network [OSTI]

    Cao, Wenwu

    The elastic and piezoelectric properties of tungsten bronze ferroelectric crystals ,,Sr0.7Ba0 and piezoelectric constants of tungsten bronze ferroelectric crystals Sr0.7Ba0.3 2NaNb5O15 SBNN70 and Sr0.3Ba0.7 2Na. INTRODUCTION Ferroelectric crystals with tungsten bronze structure are another attractive family beside

  13. Supporting Information Surface Electric Fields of Aqueous Solutions of NH4NO3, Mg(NO3)2, NaNO3,

    E-Print Network [OSTI]

    S1 Supporting Information Surface Electric Fields of Aqueous Solutions of NH4NO3, Mg(NO3)2, NaNO3 interfaces of (a) 1.0 M and 2.0 M LiNO3, (b) 1.0 M and 1.7 M NaNO3, (c) 1.0 M and 1.6 M NH4NO3, and (d) 1.0 M water 1.0 M NaNO3 1.7 M NaNO3 c water 1.0 M NH4 NO3 1.6 M NH4 NO3 | (2) | 2 (10 3 arb.units) Wavenumber

  14. High temperature oxidation and NaCl-induced accelerated corrosion of hot-dip aluminized 9Cr-1Mo and 310 stainless steel 

    E-Print Network [OSTI]

    Tsaur, Charng-Cheng

    2005-02-17T23:59:59.000Z

    The behaviors of high temperature corrosion on hot-dip aluminized on 9Cr-1Mo and 310 stainless steels when catalyzed by NaCl and cyclic heating environment were studied experimentally. The corrosion behavior and morphological ...

  15. Cad. Sade Pblica, Rio de Janeiro, 24(7):1493-1508, jul, 2008 Mapeamento do risco de homicdio com base na

    E-Print Network [OSTI]

    Camara, Gilberto

    homicídio com base na co-krigeagem binomial e simulação: um estudo de caso para São Paulo, Brasil Mapping têm incorporado o espaço e o tempo como variáveis de análise, com base na possibilidade de localização para os dados de ARTIGO ARTICLE #12;Camargo ECG et al.1494 Cad. Saúde Pública, Rio de Janeiro, 24

  16. MODELOS PARA PREVISO DE NOTAS DE AVALIAO SENSORIAL DE BEBIDA DE CAF ARBICA COM BASE NA COMPOSIO DO AROMA DO GRO

    E-Print Network [OSTI]

    Ferreira, Márcia M. C.

    MODELOS PARA PREVIS�O DE NOTAS DE AVALIA��O SENSORIAL DE BEBIDA DE CAF� ARÁBICA COM BASE NA atributos sensoriais com base no perfil cromatográfico dos voláteis de grãos de café arábica torrado as ferramentas empregadas na análise dos dados. As notas previstas pelos modelos gerados para acidez, amargor

  17. Role of ethanol in sodalite crystallization in an ethanolNa2OAl2O3SiO2 Yi Huang,ab

    E-Print Network [OSTI]

    Rubloff, Gary W.

    Role of ethanol in sodalite crystallization in an ethanol­Na2O­Al2O3­SiO2­ H2O system Yi Huang 2011 DOI: 10.1039/c1ce05194f Crystallization of sodalite was studied in an ethanol­Na2O­Al2O3­SiO2­H2O system. The addition of ethanol was observed to significantly affect the crystallization process

  18. Energy Incentive Programs, Delaware | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 Federal RegisterHydrogenDistributionFact SheetColorado EnergyDelaware

  19. Delaware Number of Natural Gas Consumers

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,128 2,469Decade Year-0Cubic Feet)Delaware Natural7,541

  20. Delaware Supplemental Supplies of Natural Gas

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,128 2,469Decade Year-0Cubic Feet)Delaware2 0.2 0.2 0.2

  1. Wilmington, Delaware: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTEDBird, Idaho:WildwoodWilloughby,Wilmington, Delaware: Energy

  2. University of Delaware Wind | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri Global Energy LLCEnergy) Redirect page JumpCorp JumpTown JumpDelaware

  3. Direct Energy Services (Delaware) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A Potential Microhydro SiteDaytonDestilariaDirect Energy Services (Delaware)

  4. Newport, Delaware: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall, Pennsylvania:Information296593°,Newcastle,NewNewport, Delaware: Energy

  5. Middletown, Delaware: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee| OpenMickeyDelaware: Energy Resources Jump to:

  6. Delaware, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnicNewDeafDeerDelIowa: EnergyDelaware, Ohio:

  7. Delaware/Wind Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnicNewDeafDeerDelIowa: EnergyDelaware,

  8. Clayton, Delaware: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformation SmyrnaNewClay Electric Cooperative, IncIowa:Delaware:

  9. Delaware: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision hasda62829c05b NoCounty,Delaware: Energy Resources

  10. Synchrotron Infrared Spectroscopy of Synthetic Na(NaMg)Mg5Si8O22(OH)2 up to 30 GPa: Insight on a New High-Pressure Amphibole Polymorph

    SciTech Connect (OSTI)

    Iezzi,G.; Liu, Z.; Ventura, G.

    2006-01-01T23:59:59.000Z

    This paper describes a high-pressure synchrotron infrared (IR) spectroscopy study of the synthetic amphibole Na(NaMg)Mg{sub 5}Si{sub 8}O{sub 22}(OH){sub 2}. This compound has P21/m symmetry at room conditions; its IR OH-stretching spectrum consists of two main bands at 3743 and 3715 cm{sup -1}, which are assigned to the two symmetrically independent O-H groups in the P structure (sample 403, Iezzi et al. 2004a). For increasing pressure, both bands shift toward higher frequency, suggesting a shortening of the O-H bond. In addition, the two bands progressively merge to give a single, symmetric and broad absorption band at 20-22 GPa. This behavior suggests that at 20-22 GPa there is a unique O-H group in the structure, indicative of a C-lattice type. The IR data thus show that the examined sample undergoes a P21/m {leftrightarrow} C2/m phase-transition at that pressure. Upon release of pressure, the initial two-band pattern is immediately recovered indicating that the pressure-induced phase-transition is reversible, as already observed for the same kind of transition induced by temperature. By analogy with structurally related pyroxenes, and taking into account the possible crystal structural topologies of amphiboles, we suggest that the C2/m polymorph stable at high pressure is characterized by fully kinked double-chains.

  11. NaNet: a Low-Latency, Real-Time, Multi-Standard Network Interface Card with GPUDirect Features

    E-Print Network [OSTI]

    Lonardo, A; Ammendola, R; Biagioni, A; Frezza, O; Lamanna, G; Cicero, F Lo; Martinelli, M; Paolucci, P S; Pastorelli, E; Pontisso, L; Rossetti, D; Simeone, F; Simula, F; Sozzi, M; Tosoratto, L; Vicini, P

    2014-01-01T23:59:59.000Z

    While the GPGPU paradigm is widely recognized as an effective approach to high performance computing, its adoption in low-latency, real-time systems is still in its early stages. Although GPUs typically show deterministic behaviour in terms of latency in executing computational kernels as soon as data is available in their internal memories, assessment of real-time features of a standard GPGPU system needs careful characterization of all subsystems along data stream path. The networking subsystem results in being the most critical one in terms of absolute value and fluctuations of its response latency. Our envisioned solution to this issue is NaNet, a FPGA-based PCIe Network Interface Card (NIC) design featuring a configurable and extensible set of network channels with direct access through GPUDirect to NVIDIA Fermi/Kepler GPU memories. NaNet design currently supports both standard - GbE (1000BASE-T) and 10GbE (10Base-R) - and custom - 34~Gbps APElink and 2.5~Gbps deterministic latency KM3link - channels, bu...

  12. Structure of 2 molar NaOH in aqueous solution from neutron diffraction and empirical potential structure refinement

    SciTech Connect (OSTI)

    McLain, Sylvia E.; Imberti, Silvia; Soper, Alan K.; Botti, Alberto; Bruni, Fabio; Ricci, Maria Antonietta [ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OXON OX11 0QX (United Kingdom); ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OXON OX11 0QX, United Kingdom and CNR-ISC, Sezione di Firenze, via Madonna del Piano 10, 50019 Sesto Fiorentino (Finland) (Italy); ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OXON OX11 0QX (United Kingdom); Dipartimento di Fisica E. Amaldi, Universita degli Studi Roma Tre, Via della Vasca Navale 84, 00146 Rome (Italy)

    2006-09-01T23:59:59.000Z

    Neutron diffraction with isotopic substitution has been used to investigate aqueous solutions of 2M NaOH in the liquid state. The data were modeled using empirical potential structure refinement which allows for the extraction of the ion-water and water-water correlations. The data show that the ion-water radial distribution functions are in accordance with those found by previous studies on NaOH solutions and follow a trend which is dependent on the concentration of the solute. In particular, the shape of the hydroxide hydration shell is found to be concentration independent, but the number of water molecules occupying this shell increases with dilution. Additionally, the water-water correlations show that there is still a measurable effect on water structure with the addition of ions at this concentration, as the second shell in the water oxygen radial distribution function is compressed relative to the first shell. The data are also used to discuss the recent claims that the published radial distribution functions of water are unreliable, showing that data taken at different neutron sources, with different diffraction geometry and systematic errors lead to the same structural information when analyzed via a realistic modeling regime.

  13. Optical studies of V4332 Sagittarii - detection of unusually strong KI and NaI lines in emission

    E-Print Network [OSTI]

    D. P. K. Banerjee; N. M. Ashok

    2004-06-21T23:59:59.000Z

    We present optical observations of the enigmatic nova-like variable V4332 Sgr. The importance of this object should not be understated since it is considered to be the possible prototype of a new class of eruptive variables. These objects have been the subject of considerable studies at present primarily because of the spectacular eruption of V838 Mon - another member of this class - recently in 2002. The cause of the outburst in such objects is not well understood. Our recent work has shown striking changes in the near-IR spectrum of V4332 Sgr since its 1994 outburst. The optical spectrum presented here confirms that V4332 Sgr is indeed an unusual and extremely interesting object. This spectrum, the first to be taken after a hiatus of nearly 10 years after the outburst, shows several lines in emission but is dominated by exceptionally strong emission in the resonance doublet of KI at 7665 and 7699{\\AA} and to a slightly lesser strength in the unresolved NaI doublet at 5890 and 5896{\\AA}. The KI lines are shown to be optically thick and considerably broadened. We investigate the site of origin of the KI and NaI emission. We discuss whether V4332 Sgr is related to L or T type dwarf based on BVRI photometry.

  14. Synthesis and photoluminescence properties of NaLaMgWO{sub 6}:RE{sup 3+} (RE = Eu, Sm, Tb) phosphor for white LED application

    SciTech Connect (OSTI)

    Hou, Jingshan [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China) [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Yin, Xin [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China) [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Huang, Fuqiang, E-mail: huangfq@mail.sic.ac.cn [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China) [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Jiang, Weizhong, E-mail: jwzh@dhu.edu.cn [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China)] [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China)

    2012-06-15T23:59:59.000Z

    Highlights: ? NaLa{sub 1?x}MgWO{sub 6}:xRE{sup 3+} phosphors were synthesized by solid-state reaction method. ? Compared with Y{sub 2}O{sub 3}:Eu{sup 3+}, NaLaMgWO{sub 6}:Eu{sup 3+} performed better luminescence properties. ? The results demonstrated NaLaMgWO{sub 6} as a suitable host for RE{sup 3+}-doping. -- Abstract: Single phase of NaLa{sub 1?x}MgWO{sub 6}:xRE{sup 3+} (0 < x ?1) (RE = Eu, Sm, Tb) phosphors were prepared by solid-state reaction method. X-ray diffraction, scanning electron microscopy, the morphology energy-dispersive X-ray spectroscopy, UV–vis diffuse reflectance spectra and photoluminescence were used to characterize the samples. Under the light excitation, NaLaMgWO{sub 6}:Eu{sup 3+}, NaLaMgWO{sub 6}:Sm{sup 3+} and NaLaMgWO{sub 6}:Tb{sup 3+}, phosphors showed the characteristic emissions of Eu{sup 3+} ({sup 5}D{sub 0} ? {sup 7}F{sub 4,3,2,1}), Sm{sup 3+} ({sup 4}G{sub 5/2} ? {sup 6}H{sub 5/2,7/2,9/2}), and Tb{sup 3+} ({sup 5}D{sub 4} ? {sup 7}F{sub 6,5,4,3}), respectively. The intensity of the red emission for Na(La{sub 0.6}Eu{sub 0.4})MgWO{sub 6} is 2.5 times higher than that of (Y{sub 0.95}Eu{sub 0.05}){sub 2}O{sub 3} under blue light irradiation. The quantum efficiencies of the entitled phosphors excited under 394 nm and 464 nm are also investigated and compared with commercial phosphors Y{sub 2}O{sub 3}:Eu{sup 3+}, Sr{sub 2}Si{sub 5}N{sub 8}:Eu{sup 2+} and Y{sub 3}A{sub 5}G{sub 12}:Ce{sup 3+}. The results demonstrated NaLaMgWO{sub 6}:RE{sup 3+} phosphors as potential candidates for white light emitting diode pumped by UV or blue chip.

  15. The UNIVERSITY OF DELAWARE The Canary Islands Health Care Systems

    E-Print Network [OSTI]

    Firestone, Jeremy

    The UNIVERSITY OF DELAWARE and the Present The Canary Islands Health Care Systems 3 week internship to the local community in the Canary Islands by teaching English to the local residents or volunteering

  16. THE ATLANTIC STURGEON, ACIPENSER OXYRHYNCHUS, IN THE DELAWARE RIVER ESTUARY

    E-Print Network [OSTI]

    throughout the Gulf of Mexico (Vladykov and Greeley 1963). The Delaware River estuary, historically one destruc- tion of benthic food organisms by coal silt pollu- tion and general deterioration of water

  17. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Gao, Guang R.

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture Guang R. Gao Thomas Sterling y CAPSL Technical Memo 15 December 15, 1997 Copyright c fl 1997 CAPSL

  18. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Gao, Guang R.

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture'arquez Thomas Sterling y CAPSL Technical Memo 09 July 18, 1997 Copyright c fl 1997 CAPSL at the University

  19. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Gao, Guang R.

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture. Theobald Xinan Tang Thomas Sterling y Guang R. Gao CAPSL Technical Memo 18 March 14, 1998 Copyright c fl

  20. Upcoversion performance improvement of NaYF{sub 4}:Yb, Er by Sn codoping: Enhanced emission intensity and reduced decay time

    SciTech Connect (OSTI)

    Yu, Han, E-mail: fjfzyh@fzu.edu.cn [College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108 (China); Cao, Wenbing [College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108 (China); Huang, Qingming [Instrumentation Analysis and Research Center, Fuzhou University, Fuzhou, Fujian 350002 (China); Ma, En [Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Zhang, Xinqi [Instrumentation Analysis and Research Center, Fuzhou University, Fuzhou, Fujian 350002 (China); Yu, Jianchang [College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108 (China)

    2013-11-15T23:59:59.000Z

    In this manuscript we report a phenomenon that upconversion emission intensity of Er{sup 3+} was enhanced while decay time constant was decreased obviously by Sn codoping with Yb/Er into hexagonal NaYF{sub 4} synchronously. X-ray powder diffiraction, field emission scanning electron microscope, transmission electron microscopy, X-ray photoelectron spectroscopy, electron spin-resonance spectroscopy and upconversion emission spectra were employed to explore the relation of crystal structure and properties. From these characterizations we found that symmetry of the rare earth ion local crystal field could be tuned by different Sn codoping concentration. For the variable valence property of Sn the local crystal field asymmetry and emission intensity of NaYF{sub 4}:Yb, Er arrived to the maximum when 3 mol% Sn was codoped, while decay time was reduced. The study of this changing tends of upconversion emission intensity and decay time constant may be helpful for design and fabrication of high performance upconversion materials. - Graphical abstract: Variable-valenced Sn is introduced with Yb/Er into NaFY{sub 4} to tune structure and local crystal field. Upconversion emission intensity of Er{sup 3+} was enhanced while decay time constant was decreased. Display Omitted - Highlights: • NaYF{sub 4}: Yb, Er was codoped with different concentration Sn. • Upconversion emission intensity was enhanced while decay time constant was decreased. • Introduction of variable-valenced Sn is effective to tune structure and crystal field of NaFY{sub 4}.

  1. Ti-substituted tunnel-type Na0.44MnO2 oxide as a negative electrode for aqueous sodium-ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wang, Yuesheng [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP); Liu, Jue [Brookhaven National Lab. (BNL), Upton, NY (United States); Lee, Byungju [Seoul National Univ. (Korea, Republic of); Qiao, Ruimin [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source; Yang, Zhenzhong [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP); Xu, Shuyin [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP); Yu, Xiqian [Brookhaven National Lab. (BNL), Upton, NY (United States)] (ORCID:000000018513518X); Gu, Lin [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP); Hu, Yong-Sheng [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP)] (ORCID:0000000284306474); Yang, Wanli [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source] (ORCID:0000000306668063); Kang, Kisuk [Seoul National Univ. (Korea, Republic of); Li, Hong [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP)] (ORCID:000000028659086X); Yang, Xiao-Qing [Brookhaven National Lab. (BNL), Upton, NY (United States); Chen, Liquan [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP); Huang, Xuejie [Chinese Academy of Sciences (CAS), Beijing (China). Inst. of High Energy Physics (IHEP)

    2015-03-25T23:59:59.000Z

    The aqueous sodium-ion battery system is a safe and low-cost solution for large-scale energy storage, due to the abundance of sodium and inexpensive aqueous electrolytes. Although several positive electrode materials, e.g., Na0.44MnO2, were proposed, few negative electrode materials, e.g., activated carbon and NaTi2(PO4)3, are available. Here we show that Ti-substituted Na0.44MnO2 (Na0.44[Mn1-xTix]O2) with tunnel structure can be used as a negative electrode material for aqueous sodium-ion batteries. This material exhibits superior cyclability even without the special treatment of oxygen removal from the aqueous solution. Atomic-scale characterizations based on spherical aberration-corrected electron microscopy and ab initio calculations are utilized to accurately identify the Ti substitution sites and sodium storage mechanism. Ti substitution tunes the charge ordering property and reaction pathway, significantly smoothing the discharge/charge profiles and lowering the storage voltage. Both the fundamental understanding and practical demonstrations suggest that Na0.44[Mn1-xTix]O2 is a promising negative electrode material for aqueous sodium-ion batteries.

  2. Ti-substituted tunnel-type Na0.44MnO2 oxide as a negative electrode for aqueous sodium-ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wang, Yuesheng; Liu, Jue; Lee, Byungju; Qiao, Ruimin; Yang, Zhenzhong; Xu, Shuyin; Yu, Xiqian; Gu, Lin; Hu, Yong-Sheng; Yang, Wanli; et al

    2015-03-25T23:59:59.000Z

    The aqueous sodium-ion battery system is a safe and low-cost solution for large-scale energy storage, due to the abundance of sodium and inexpensive aqueous electrolytes. Although several positive electrode materials, e.g., Na0.44MnO2, were proposed, few negative electrode materials, e.g., activated carbon and NaTi2(PO4)3, are available. Here we show that Ti-substituted Na0.44MnO2 (Na0.44[Mn1-xTix]O2) with tunnel structure can be used as a negative electrode material for aqueous sodium-ion batteries. This material exhibits superior cyclability even without the special treatment of oxygen removal from the aqueous solution. Atomic-scale characterizations based on spherical aberration-corrected electron microscopy and ab initio calculations are utilized to accuratelymore »identify the Ti substitution sites and sodium storage mechanism. Ti substitution tunes the charge ordering property and reaction pathway, significantly smoothing the discharge/charge profiles and lowering the storage voltage. Both the fundamental understanding and practical demonstrations suggest that Na0.44[Mn1-xTix]O2 is a promising negative electrode material for aqueous sodium-ion batteries.« less

  3. Cross sections for monitor reactions {sup 27}Al((p, x){sup 24}Na, {sup 27}Al(p, x){sup 22}Na, and {sup 27}Al(p, x){sup 7}Be at proton energies in the range 0.04-2.6 GeV

    SciTech Connect (OSTI)

    Titarenko, Yu. E.; Borovlev, S. P.; Butko, M. A.; Zhivun, V. M.; Pavlov, K. V.; Rogov, V. I.; Titarenko, A. Yu.; Tikhonov, R. S.; Florya, S. N.; Koldobskiy, A. B. [Institute for Theoretical and Experimental Physics (Russian Federation)

    2011-04-15T23:59:59.000Z

    The cross sections for the monitor reactions {sup 27}Al(p, x){sup 24}Na, {sup 27}Al(p, x){sup 22}Na, and {sup 27}Al(p, x){sup 7}Be at 12 proton energies, 2605, 1598, 1199, 799, 600, 400, 249, 147.6, 97.2, 66.0, 44.6, and 40.8 MeV, have been determined with 72 Multiplication-Sign 72-mm square and 10.5-mm-diameter round aluminum foils. The rates of the reactions of the production of {sup 24}Na, {sup 22}Na, and {sup 7}Be in the foils in each irradiation run have been determined by {gamma} spectrometry, whereas the number of protons transmitted through these foils has been determined using calibrated fast current transformers. The cross sections have been determined as the ratios of the corresponding reaction to the average proton fluence.

  4. Passive solar homes in Delaware Valley

    SciTech Connect (OSTI)

    Kendig, J. [New Jersey Inst. of Tech., Princeton, NJ (United States)

    1997-12-31T23:59:59.000Z

    This paper examines ten single family residences in the Delaware Valley area which include passive solar design features. The study identifies successful and failed solar features of the houses, evaluates solar performance of a few houses, and examines occupants satisfaction with their houses. The study described in this paper includes the following: description of the overall passive solar design and listing of solar features used in each house, survey of each house in its present condition documenting changes to the original design (if any), summary of occupant questionnaire and interviews of house owners regarding their evaluation of house performance. Owners in this study retained positive attitude to their homes in spite of the problems with some solar features. Modifications to the solar features have been significant, but in no case was the solar aspect abandoned.

  5. A high-resolution TDC-based board for a fully digital trigger and data acquisition system in the NA62 experiment at CERN

    E-Print Network [OSTI]

    Elena Pedreschi; Bruno Angelucci; Carlo Avanzini; Stefano Galeotti; Gianluca Lamanna; Guido Magazzu; Jacopo Pinzino; Roberto Piandani; Marco Sozzi; Franco Spinella; Stefano Venditti

    2014-07-09T23:59:59.000Z

    A Time to Digital Converter (TDC) based system, to be used for most sub-detectors in the high-flux rare-decay experiment NA62 at CERN SPS, was built as part of the NA62 fully digital Trigger and Data AcQuisition system (TDAQ), in which the TDC Board (TDCB) and a general-purpose motherboard (TEL62) will play a fundamental role. While TDCBs, housing four High Performance Time to Digital Converters (HPTDC), measure hit times from sub-detectors, the motherboard processes and stores them in a buffer, produces trigger primitives from different detectors and extracts only data related to the lowest trigger level decision, once this is taken on the basis of the trigger primitives themselves. The features of the TDCB board developed by the Pisa NA62 group are extensively discussed and performance data is presented in order to show its compliance with the experiment requirements.

  6. Structure and ferroelectricity of nonstoichiometric (Na{sub 0.5}Bi{sub 0.5})TiO{sub 3}

    SciTech Connect (OSTI)

    Carter, Jared [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Aksel, Elena [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Graduate School of Science and Technology, Tokyo Institute of Technology, Tokyo 152–8552 (Japan); Iamsasri, Thanakorn; Forrester, Jennifer S.; Jones, Jacob L. [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695 (United States); Chen, Jun [Department of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083 (China)

    2014-03-17T23:59:59.000Z

    Stoichiometric (Na{sub 0.5}Bi{sub 0.5})TiO{sub 3} (NBT) adopts the ABO{sub 3} perovskite structure with the A-site equally occupied by Na{sup +} and Bi{sup 3+} ions. However, non-stoichiometric compositions can be synthesized intentionally or unintentionally. To determine the effect of A-site nonstoichiometry on the crystal structure and ferroelectricity of NBT, the composition of (Na{sub 0.5?x}Bi{sub 0.5+x})TiO{sub 3+x} was varied using x?=??0.01, ?0.005, 0, 0.005, and 0.01. High resolution synchrotron x-ray diffraction and Rietveld refinement revealed that a shift in either direction from x = 0 results in a decrease in the spontaneous ferroelastic strain. Ferroelectric hysteresis and piezoelectric coefficients were found to be optimum in the stoichiometric composition.

  7. Exotic magnetism on the quasi-FCC lattices of the d3 double perovskites La2NaB'O6 (B' = Ru, Os)

    SciTech Connect (OSTI)

    Aczel, Adam A [ORNL] [ORNL; Baker, Peter J. [ISIS Facility, Rutherford Appleton Laboratory (ISIS)] [ISIS Facility, Rutherford Appleton Laboratory (ISIS); Bugaris, Dan [University of South Carolina] [University of South Carolina; Yeon, Jeongho [University of South Carolina, Columbia] [University of South Carolina, Columbia; Zur Loye, Hans-Conrad [University of South Carolina] [University of South Carolina; Guidi, T. [ISIS Facility, Rutherford Appleton Laboratory (ISIS)] [ISIS Facility, Rutherford Appleton Laboratory (ISIS); Adroja, D. T. [ISIS Facility, Rutherford Appleton Laboratory (ISIS)] [ISIS Facility, Rutherford Appleton Laboratory (ISIS)

    2014-01-01T23:59:59.000Z

    We find evidence for long-range and short-range ($\\zeta$~$=$~70~\\AA~at 4~K) incommensurate magnetic order on the quasi-face-centered-cubic (FCC) lattices of the monoclinic double perovskites La$_2$NaRuO$_6$ and La$_2$NaOsO$_6$ respectively. Incommensurate magnetic order on the FCC lattice has not been predicted by mean field theory, but may arise via a delicate balance of inequivalent nearest neighbour and next nearest neighbour exchange interactions. In the Ru system with long-range order, inelastic neutron scattering also reveals a spin gap $\\Delta$~$\\sim$~2.75~meV. Magnetic anisotropy is generally minimized in the more familiar octahedrally-coordinated $3d^3$ systems, so the large gap observed for La$_2$NaRuO$_6$ may result from the significantly enhanced value of spin-orbit coupling in this $4d^3$ material.

  8. Vibrational analysis of the elpasolites Cs{sub 2}NaAlF{sub 6} and Cs{sub 2}NaGaF{sub 6} doped with Cr{sup 3+} ions by fluorescence spectroscopy.

    SciTech Connect (OSTI)

    Bordallo, H. N.; Sosman, L. P.; Tavares, A. D., Jr.; da Fonseca, R. J. M.

    1999-09-07T23:59:59.000Z

    Interest in 3d transition metal impurities in ionic crystals has increased due to their important role in the laser activity of these materials. Moreover, recent advances in tunable solid-state lasers and high-power semiconductor laser diode arrays have generated a strong interest in investigating new compounds that emit in the visible and near-infrared spectral regions. In particular, many optical studies have been devoted to Cr{sup 3+}-doped fluoride crystals as a consequence of the high quality of some Cr{sup 3+}-based laser materials. In the present investigation, the low temperature emission spectra of Cr{sup 3+} ions in the hexagonal elpasolites Cs{sub 2}NaAlF{sub 6} and Cs{sub 2}NaGaF{sub 6} have been measured. Each compound has two crystallographically inequivalent octahedral sites for the Al{sup 3+} and Ga{sup 3+} ions that can be occupied by Cr{sup 3+} ions. For both materials, the luminescence spectrum presents two zero-phonon lines accompanied by a well-defined vibrational structure. The different peaks of the emission broadband are described in terms of phonons of the lattice and normal modes of the octahedral complex [CrF{sub 6}]{sup 3{minus}}. A detailed analysis of the vibrational structure observed leads to the conclusion that the {sup 2}E and {sup 4}T{sub 2} excited states of the [CrF{sub 6}]{sup 3{minus}} ions are displaced along the e{sub g}, a{sub 1g} and probably the t{sub 2g} coordinates.

  9. Room temperature magnetocaloric effect, critical behavior, and magnetoresistance in Na-deficient manganite La{sub 0.8}Na{sub 0.1}MnO{sub 3}

    SciTech Connect (OSTI)

    Khlifi, M., E-mail: khlifimouadh3000@yahoo.fr; Dhahri, E. [Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, B.P. 802, Université de Sfax, Sfax 3018 (Tunisia); Hlil, E. K. [Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9 (France)

    2014-05-21T23:59:59.000Z

    The La{sub 0.8}Na{sub 0.1}MnO{sub 3} oxide was prepared by the solid-state reaction and annealed in air. The X-ray diffraction data reveal that the sample is crystallized in a rhombohedral structure with R3{sup ¯}c space group. Magnetic study shows a second-order magnetic phase transition from ferromagnetic to paramagnetic state at the Curie temperature T{sub C}?=?295?K. In addition, the magnetizations as a function of temperature and the magnetic field is used to evaluate the magnetic entropy change ?S{sub M}. Then, we have deduced that the La{sub 0.8}Na{sub 0.1}MnO{sub 3} oxide has a large magnetocaloric effect at room temperature. Such effect is given by the maximum of the magnetic entropy change ?S{sub Mmax}?=?5.56, and by the Relative cooling power (RCP) factor which is equal to 235 under a magnetic field of 5?T. Moreover, the magnetic field dependence of the magnetic entropy change is used to determine the critical exponents ?, ?, and ? which are found to be ??=?0.495, ??=?1.083, and ??=?3.18. These values are consistent with the prediction of the mean field theory (??=?0.5, ??=?1, and ??=?3). Above all, the temperature dependence of electrical resistivity shows a metal–insulator transition at T{sub ?}. The electrical resistivity decrease when we apply a magnetic field giving a magnetoresistance effect in the order of 60% at room temperature.

  10. Ionic conduction, bond valence analysis of structure–property relationships of NaHoP{sub 2}O{sub 7}

    SciTech Connect (OSTI)

    Béjaoui, Anis, E-mail: bejaoui-anis@hotmail.fr; Horchani-Naifer, Karima; Férid, Mokhtar

    2013-08-15T23:59:59.000Z

    Single crystals of NaHoP{sub 2}O{sub 7} diphosphate have been prepared by the flux method and its structural and physical properties have been investigated. It crystallizes in the monoclinic system with the space group P2{sub 1}/n and its parameters are: a=8.6796(4) Å, b=5.3677(2) Å, c=13.6904(6) Å, ?=106.120° (2), V=612.75 (5) Å{sup 3}, Z=4. The structure of NaHoP{sub 2}O{sub 7} consists of a three-dimensional framework of HoO{sub 6} octahedra, linked by P{sub 2}O{sub 7} diphosphate units, forming tunnels running parallel to [0 1 0], which are occupied by Na atoms. The infrared and Raman vibrational spectra have been investigated. Activation energy was obtained from Arrhenius plots (Ln ?T versus 1000/T) and found to be 1.27 eV. The coupling of the structural analysis with the BVS model for NaHoP{sub 2}O{sub 7} has better interpret the measurements of the ionic conductivity and the most probably transport pathway model was determined. - Graphical abstract: Schematic representation of the structural arrangement of NaHoP{sub 2}O{sub 7} shows the sodium conduction pathway along the [0 1 0] direction. Highlights: • Single crystals of NaHoP{sub 2}O{sub 7} were prepared by flux method and characterized by single-crystal X-ray data. • The conductivity and loss spectra were analysed in order explain the mechanism of conduction. • The most probably conduction pathway are determined.

  11. Density functional theory studies on theelectronic, structural, phonon dynamicaland thermo-stability properties of bicarbonates MHCO3, M D Li, Na, K

    SciTech Connect (OSTI)

    Duan, Yuhua; Zhang, Bo; Sorescu, Dan C.; Johnson, Karl; Majzoub, Eric H; Luebke, David R.

    2012-07-01T23:59:59.000Z

    The structural, electronic, phonon dispersion and thermodynamic properties of MHCO3 (M D Li, Na, K) solids were investigated using density functional theory. The calculated bulk properties for both their ambient and the high-pressure phases are in good agreement with available experimental measurements. Solid phase LiHCO3 has not yet been observed experimentally. We have predicted several possible crystal structures for LiHCO3 using crystallographic database searching and prototype electrostatic ground state modeling. Our total energy and phonon free energy .FPH/ calculations predict that LiHCO3 will be stable under suitable conditions of temperature and partial pressures of CO2 and H2O. Our calculations indicate that the HCO􀀀 3 groups in LiHCO3 and NaHCO3 form an infinite chain structure through O#1; #1; #1;H#1; #1; #1;O hydrogen bonds. In contrast, the HCO􀀀 3 anions form dimers, .HCO􀀀 3 /2, connected through double hydrogen bonds in all phases of KHCO3. Based on density functional perturbation theory, the Born effective charge tensor of each atom type was obtained for all phases of the bicarbonates. Their phonon dispersions with the longitudinal optical–transverse optical splitting were also investigated. Based on lattice phonon dynamics study, the infrared spectra and the thermodynamic properties of these bicarbonates were obtained. Over the temperature range 0–900 K, the FPH and the entropies (S) of MHCO3 (M D Li, Na, K) systems vary as FPH.LiHCO3/ > FPH.NaHCO3/ > FPH.KHCO3/ and S.KHCO3/ > S.NaHCO3/ > S.LiHCO3/, respectively, in agreement with the available experimental data. Analysis of the predicted thermodynamics of the CO2 capture reactions indicates that the carbonate/bicarbonate transition reactions for Na and K could be used for CO2 capture technology, in agreement with experiments.

  12. Evidence for the onset of deconfinement and quest for the critical point by NA49 at the CERN SPS

    SciTech Connect (OSTI)

    Melkumov, G. L., E-mail: georgui.melkoumov@cern.ch [Joint Institute for Nuclear Research (Russian Federation); Anticic, T. [Rudjer Boskovic Institute (Croatia); Baatar, B. [Joint Institute for Nuclear Research (Russian Federation); Barna, D. [KFKI Research Institute for Particle and Nuclear Physics (Hungary); Bartke, J. [Polish Academy of Sciences, H. Niewodniczanski Institute of Nuclear Physics (Poland); Beck, H. [Fachbereich Physik der Universitaet (Germany); Betev, L. [CERN (Switzerland); Bialkowska, H. [Institute for Nuclear Studies (Poland); Blume, C. [Fachbereich Physik der Universitaet (Germany); Bogusz, M. [Warsaw University of Technology, Faculty of Physics (Poland); Boimska, B. [Institute for Nuclear Studies (Poland); Book, J. [Fachbereich Physik der Universitaet (Germany); Botje, M. [NIKHEF (Netherlands); Buncic, P. [CERN (Switzerland); Cetner, T. [Warsaw University of Technology, Faculty of Physics (Poland); Christakoglou, P. [NIKHEF (Netherlands); Chung, P. [Stony Brook University (SUNYSB), Department of Chemistry (United States); Chvala, O. [Charles University, Institute of Particle and Nuclear Physics (Czech Republic); Cramer, J. G. [University of Washington, Nuclear Physics Laboratory (United States); Eckardt, V. [Max-Planck-Institut fuer Physik (Germany); and others

    2012-05-15T23:59:59.000Z

    The NA49 results on hadron production obtained in PbPb collisions at SPS energies from 20 to 158 A GeV are shown and discussed as evidence for the onset of deconfinement. The primary measures are the pion yield, the kaon-to-pion ratio and the slope parameter of transverse mass distributions. The possible indication of the QCD critical point signatures was investigated in the event-by-event fluctuations of various observables such as the mean transverse momentum, particle multiplicity and azimuthal angle distributions as well as in the particle ratio fluctuations. The energy dependence of these observables was measured in central PbPb collisions in the full SPS energy range while for analysis of the system size dependence data from pp, CC, SiSi, and PbPb collisions at the top SPS energy were used.

  13. Temeljna na?ela i postupci u pretvaranju sirove dijalektološke gra?e u znanstveni rje?nik

    E-Print Network [OSTI]

    Blažeka, ?uro

    2010-02-01T23:59:59.000Z

    tvorbenu zanimljivost ili pak je zabilježena zanimljiva re?eni?na potvrda, npr.: RadUvanje [rad?uva?e rad?uva?a] n Gl. im. < rad?uvat? se. ? ?be??a?e l?ud?m rad?uva?e! MOTANJE [m?ota?e m?ota?a] n 1. motanje. ? ?Ov? m?ota?e v?one m? je v??? d?osadn?. 2... [b?el?t? se b?el?m se] impf. pej. duriti se pokazuju?i jezik. ? Ne m??raš se b?el?t?! N?i??s? n?ik?m? zan?iml?f! DOGLJUMPATI SE [d?g??umpat? se d?g??umpam se] pf. šalj. dosjetiti se. ? K?ak sam se pr??jd? n?i?? t?oga d?g??umpal! M?ogl? sm? v??...

  14. Hot-stage transmission electron microscopy study of (Na, K)NbO{sub 3} based lead-free piezoceramics

    SciTech Connect (OSTI)

    Lu, Shengbo, E-mail: shengbo.lu@yahoo.com [Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon (Hong Kong); Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hung Hom, Kowloon (Hong Kong); Xu, Zhengkui [Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon (Hong Kong); Kwok, K. W.; Chan, Helen L. W. [Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hung Hom, Kowloon (Hong Kong)

    2014-07-28T23:59:59.000Z

    Hierarchical nanodomains assembled into micron-sized stripe domains, which is believed to be associated with outstanding piezoelectric properties, were observed at room temperature in a typical lead free piezoceramics, (Na{sub 0.52}K{sub 0.48?x})(Nb{sub 0.95?x}Ta{sub 0.05})-xLiSbO{sub 3}, with finely tuned polymorphic phase boundaries (x?=?0.0465) by transmission electron microscopy. The evolution of domain morphology and crystal structure under heating and cooling cycles in the ceramic was investigated by in-situ hot stage study. It is found that the nanodomains are irreversibly transformed into micron-sized rectangular domains during heating and cooling cycles, which lead to the thermal instability of piezoelectric properties of the materials.

  15. The Role of FeS in Initial Activation and Performance Degradation of Na-NiCl2 Batteries

    SciTech Connect (OSTI)

    Li, Guosheng; Lu, Xiaochuan; Kim, Jin Yong; Engelhard, Mark H.; Lemmon, John P.; Sprenkle, Vincent L.

    2014-12-25T23:59:59.000Z

    The role of iron sulfide (FeS) in initial cell activation and degradation in the Na-NiCl2 battery was investigated in this work. The research focused on identifying the effects of the FeS level on the electrochemical performance and morphological changes in the cathode. The x-ray photoelectron spectroscopy study along with battery tests revealed that FeS plays a critical role in initial battery activation by removing passivation layers on Ni particles. It was also found that the optimum level of FeS in the cathode resulted in minimum Ni particle growth and improved battery cycling performance. The results of electrochemical characterization indicated that sulfur species generated in situ during initial charging, such as polysulfide and sulfur, are responsible for removing the passivation layer. Consequently, the cells containing elemental sulfur in the cathode exhibited similar electrochemical behavior during initial charging compared to that of the cells containing FeS.

  16. Enhancement of second harmonic generation in NaNO{sub 2}-infiltrated opal photonic crystal using structural light focusing

    SciTech Connect (OSTI)

    Zaytsev, Kirill I., E-mail: kirzay@gmail.com; Yurchenko, Stanislav O., E-mail: st.yurchenko@mail.ru [Bauman Moscow State Technical University, 105005, 2nd Baumanskaya str. 5, Moscow (Russian Federation)

    2014-08-04T23:59:59.000Z

    Experimental and numerical results for second harmonic generation (SHG) in photonic crystal (PC) based on NaNO{sub 2}-infiltrated opal matrix are presented. SHG is performed in reflection mode; thus, the direction of the SHG maximum is equal to the angle of mirror reflection. The PC was pumped with femtosecond optical pulses at different angles of incidence, allowing the dependence of the SHG efficiency on the location of the fundamental wavelength toward the PC band gap (BG) to be examined. The most efficient SHG was observed when pumping the BG of the PC. To interpret the experimental results, finite-difference time-domain numerical simulations of the light interaction with the PC were conducted. The observed effect of highly efficient SHG is associated with structural light focusing, and, as a consequence, with strong optical field localization within certain near-surface PC regions. Thus, SHG enhancement based on structural light focusing in PC was demonstrated.

  17. Influence of cadmium on ketamine-induced anesthesia and brain microsomal Na[sup +], K[sup +]-ATPase in mice

    SciTech Connect (OSTI)

    Shen, Y.; Sangiah, S. (Oklahoma State Univ., Stillwater, OK (United States))

    1994-10-01T23:59:59.000Z

    Cadmium is a rare metallic element, present in almost all types of food. Shellfish, wheat and rice accumulate very high amounts. Occupational and environmental pollutants are the main sources of cadmium exposure. Cadmium has a very long biologic half-life. Exposure to Cadmium causes anemia, hypertension, hepatic, renal, pulmonary and cardiovascular disorders as well as being a possible mutagen, teratogen and carcinogen. Acute cadmium treatment increased the hexobarbital sleeping time and inhibited hepatic microsomal drug metabolism due to a decrease in cytochrome P[sub 450] content. Cadmium potentiated ethanol-induced sleep in a dose-dependent manner. Cadmium has been shown to inhibit brain microsomal Na[sup +], K[sup +]-ATPase activity in vitro and in vivo. Cadmium and ethanol additively inhibited brain Na[sup +], K[sup +]-ATPase. This might be a direct interaction between cadmium and ethanol in the central nervous system. Ketamine is an intravenous anesthetic agent. It acts on central nervous system and produces [open quotes]dissociative anaesthesia.[close quotes] Ketamine provides adequate surgical anesthesia and is used alone in humans and/or combination with xylazine, an [alpha][sub 2]-adrenergic agonist in animals. It produces CNS depression, analgesia, amnesia, immobility and a feeling of dissociation from the environment. Ketamine is a non-competitive antagonist of the NMDA subset of the glutamate receptor. This perhaps results in an increase in neuronal activity leading to disorganization of normal neurotransmission and produces dissociative anesthetic state. Because it is different from most other anesthetics, ketamine may be expected to have a unique effect on brain biochemical parameters and enzymes. The purpose of this study was to examine the interactions between cadmium and ketamine on the central nervous system and ATPase, in an attempt to further understand the mechanism of action. 12 refs., 3 figs.

  18. Luminescent properties of Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} and its potential application in white light emitting diodes

    SciTech Connect (OSTI)

    Wang, Zhijun, E-mail: wangzhijunmail@yahoo.com.cn [College of Physics Science and Technology, Hebei University, Baoding 071002 (China); Li, Panlai; Li, Ting; Zhang, Xing; Li, Qingxuan; Yang, Zhiping; Guo, Qinglin [College of Physics Science and Technology, Hebei University, Baoding 071002 (China)

    2013-06-01T23:59:59.000Z

    Graphical abstract: Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} phosphor can be effectively excited by an ultraviolet and near-ultraviolet light, and produce a bright blue emission centered at 436 nm. The CIE chromaticity coordinations (x, y) of Na{sub 2}CaSiO{sub 4}:Eu{sup 2+}(NSCE)/Li{sub 2}SrSiO{sub 4}:Eu{sup 2+}(LSSE) vary with the molar ratio of the two constituents. When NSCE/LSSE is 1:3, the CIE chromaticity coordination is (0.332, 0.346), which is close to that of the natural sunlight (0.33, 0.33). The results indicate that Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} may be a promising blue phosphor for UV chip-based multi-phosphor converted white light emitting diodes. Highlights: ? Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} shows the blue emission with a peak at 436 nm and broad excitation band in the UV/n-UV range. ? White light with CIE coordinates (0.332, 0.346) is generated by mixing the blue phosphor with the Li{sub 2}SrSiO{sub 4}:Eu{sup 2+} yellow phosphor. ? Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} would be a promising blue phosphor candidate for UV chip-based multi-phosphor converted white LEDs. - Abstract: A novel blue phosphor Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} is synthesized by a high temperature solid-state reaction, and its luminescent properties are systematically studied. Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} can be effectively excited by the 354 nm radiation, and create blue emission (436 nm). The emission intensity of Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} is influenced by the Eu{sup 2+} doping content, and the optimal doping content is 1.5%, and the concentration quenching mechanism of Eu{sup 2+} in Na{sub 2}CaSiO{sub 4} can be attributed to the multipolar interaction. The white light with CIE coordinates (0.332, 0.346) is generated by mixing the blue phosphor Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} with the yellow phosphor Li{sub 2}SrSiO{sub 4}:Eu{sup 2+}. The results indicate that Na{sub 2}CaSiO{sub 4}:Eu{sup 2+} may be a potential blue emitting phosphor for UV chip-based multi-phosphor converted white light emitting diodes.

  19. 2011/2012 University of Delaware Library www.udel.edu/library WELCOME TO THE LIBRARY

    E-Print Network [OSTI]

    Gao, Guang R.

    2011/2012 University of Delaware Library www.udel.edu/library WELCOME TO THE LIBRARY New Library Home Page University of Delaware Library OFFICE OF THE VICE PROVOST & MAY MORRIS DIRECTOR OF LIBRARIES-831-2231 Fax: 302-831-1046 Greetings, Welcome to the University of Delaware Library which includes the Morris

  20. 2013/2014 University of Delaware Library www.udel.edu/library WELCOME TO THE LIBRARY

    E-Print Network [OSTI]

    Firestone, Jeremy

    2013/2014 University of Delaware Library www.udel.edu/library WELCOME TO THE LIBRARY Greetings, Welcome to the University of Delaware Library, which includes the Morris Library and three branch libraries. This is an exciting time for the University of Delaware Library, as more and more students

  1. Valuing Public Preferences for Offshore Wind Power Andrew D. Krueger, University of Delaware, College of Marine and Earth Studies

    E-Print Network [OSTI]

    Firestone, Jeremy

    Valuing Public Preferences for Offshore Wind Power Andrew D. Krueger, University of Delaware in Massachusetts, New York, Delaware, and Texas. For Delaware, offshore wind power is currently the only cost public opposition, regulatory obstacles, and lack of incentives. Table 1: Delaware Offshore Wind Power

  2. Exploiting Near-Field Coupling between Closely Spaced, Gas-Phase, 10 ( 5 nm Ag Nanoparticles Deposited on NaCl To Observe the Quadrupolar Surface Plasmon Absorption

    E-Print Network [OSTI]

    Hitchcock, Adam P.

    Deposited on NaCl To Observe the Quadrupolar Surface Plasmon Absorption David B. Pedersen* and Shiliang Wang of peak absorbance of the surface plasmon resonance (SPR) associated with the nanoparticles. Several of the surface plasmon resonance to longer wavelengths as the interparticle separation decreases is typically

  3. The Cleveland MuseuM of naTural hisTorY nuMber 56 GEOLOGY AND PALEONTOLOGY OF LEMUDONG'O, KENYA

    E-Print Network [OSTI]

    Hlusko, Leslea J.

    The Cleveland MuseuM of naTural hisTorY nuMber 56 GEOLOGY AND PALEONTOLOGY OF LEMUDONG'O, KENYA HISTORY OF PALEONTOLOGICAL RESEARCH IN THE NAROK DISTRICT OF KENYA 1 Stanley H. Ambrose, Mwanzia David, A LATE MIOCENE TERRESTRIAL FOSSIL SITE IN SOUTHERN KENYA 38 Stanley H. Ambrose, Christopher J. Bell

  4. Discrete Li-occupation versus pseudo-continuous Na-occupation and their relationship with structural change behaviors in Fe?(MoO?)?

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Yue, Ji-Li; Zhou, Yong-Ning; Shi, Si-Qi; Shadike, Zulipiya; Huang, Xuan-Qi; Luo, Jun; Yang, Zhen-Zhong; Li, Hong; Gu, Lin; Yang, Xiao-Qing; et al

    2015-03-06T23:59:59.000Z

    The key factors governing the single-phase or multi-phase structural change behaviors during the intercalation/deintercalation of guest ions have not been well studied and understood yet. Through systematic studies of orthorhombic Fe?(MoO?)? electrode, two distinct guest ion occupation paths, namely discrete one for Li and pseudo-continuous one for Na, as well as their relationship with single-phase and two-phase modes for Na? and Li?, respectively during the intercalation/deintercalation process have been demonstrated. For the first time, the direct atomic-scale observation of biphasic domains (discrete occupation) in partially lithiated Fe?(MoO?)? and the one by one Na occupation (pseudo-continuous occupation) at 8d sites inmore »partially sodiated Fe?(MoO?)? are obtained during the discharge processes of Li/Fe?(MoO?)? and Na/Fe?(MoO?)? cells respectively. Our combined experimental and theoretical studies bring the new insights for the research and development of intercalation compounds as electrode materials for secondary batteries.« less

  5. The determination of phase relations in the CH?-H?O-NaCl system at 2 and 5 kbars, 300 to 600° C using synthetic fluid inclusions

    E-Print Network [OSTI]

    McShane, Christopher Joseph

    1999-01-01T23:59:59.000Z

    the fluid. The fractured prisms were dried overnight at approximately 130'C and placed into an annealed Au capsule (4. 75 mm x 4. 50 mm x 76 mm). Known amounts of HtO + NaCl solutions of various molalities were placed in the capsule along with the prism...

  6. Prototype Tests for the Recovery and Conversion of UF6Chemisorbed in NaF Traps for the Molten Salt Reactor Remediation Project

    SciTech Connect (OSTI)

    Del Cul, G.D.

    2000-06-07T23:59:59.000Z

    The remediation of the Molten Salt Reactor Experiment (MSRE) site includes the removal of about 37 kg of uranium. Of that inventory, about 23 kg have already been removed from the piping system and chemisorbed in 25 NaF traps. This material is being stored in Building 3019. The planned recovery of {approx}11 kg of uranium from the fuel salt will generate another 15 to 19 NaF traps. The remaining 2 to 3 kg of uranium are present in activated charcoal beds, which are also scheduled to be removed from the reactor site. Since all of these materials (NaF traps and the uranium-laden charcoal) are not suitable for long-term storage, they will be converted to a chemical form [uranium oxide (U{sub 3}O{sub 8})], which is suitable for long-term storage. This document describes the process that will be used to recover and convert the uranium in the NaF traps into a stable oxide for long-term storage. Included are a description of the process, equipment, test results, and lessons learned. The process was developed for remote operation in a hot cell. Lessons learned from the prototype testing were incorporated into the process design.

  7. Prototype Tests for the Recovery and Conversion of UF6 Chemisorbed in NaF Traps for the Molten Salt Reactor Remediation Project

    SciTech Connect (OSTI)

    Del Cul, G.D.; Icenhour, A.S.; Simmons, D.W.

    2000-04-01T23:59:59.000Z

    The remediation of the Molten Salt Reactor Experiment (MSRE) site includes the removal of about 37 kg of uranium. Of that inventory, about 23 kg have already been removed from the piping system and chemisorbed in 25 NaF traps. This material is being stored in Building 3019. The planned recovery of -11 kg of uranium from the fuel salt will generate another 15 to 19 NaF traps. The remaining 2 to 3 kg of uranium are present in activated charcoal beds, which are also scheduled to be removed from the reactor site. Since all of these materials (NaF traps and the uranium-laden charcoal) are not suitable for long-term storage, they will be converted to a chemical form [uranium oxide], which is suitable for long-term storage. This document describes the process that will be used to recover and convert the uranium in the NaF traps into a stable oxide for long-term storage. Included are a description of the process, equipment, test results, and lessons learned. The process was developed for remote operation in a hot cell. Lessons learned from the prototype testing were incorporated into the process design.

  8. The Minnesota Wri.ng Project's Collabora.on with Teacher Educators in Norway Na.onal Center for Wri.ng Educa.on and Research (Skrivesenteret)

    E-Print Network [OSTI]

    Amin, S. Massoud

    The Minnesota Wri.ng Project's Collabora.on with Teacher Educators in Norway (HiST) · Located in Trondheim, Norway It funcIons as a naIonal resource center their work with teachers throughout all of Norway. In order to obtain more first

  9. 116 BULLETIN O F THE UNITED STATES FISH COMMISSION. ISEMOVAL O F BASS FROm INDIANA TO NORTH CAROLlNA B Y TEE

    E-Print Network [OSTI]

    116 BULLETIN O F THE UNITED STATES FISH COMMISSION. ISEMOVAL O F BASS FROm INDIANA TO NORTH CAROLl of fish culture at present. The experience in bass propagation by Major Arnold, and the transfer fromNA B Y TEE UNITED STATEB FPSE oommmsmo1y. B y CNAS. W. SMILEY. Although the Fish Commission has

  10. Comparison of molecular dynamics simulations with Triple Layer and modified Gouy-Chapman models in a 0.1 M NaCl -montmorillonite

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    at the pore scale were carried out at 0.1 mol L-1 NaCl concentration in order to constrain cation, anion, high structural charge and surface area associated with the clay minerals. A comprehensive study of their surface properties and particularly of the ionic composition and mobility is necessary to assess

  11. Na1/3V2O5 V-V "4kF CDW" [1] H. Seo, S. Ishibashi, and Y. Otsuka, unpublished.

    E-Print Network [OSTI]

    Katsumoto, Shingo

    #12;2 Sr1/3V2O5 [9] 4 Na1/3V2O5 V-V "4kF CDW" [1] H. Seo, S. Ishibashi, and Y. Otsuka, unpublished. [2] H. Seo and H. Fukuyama, J. Phys. Soc. Jpn. 67 (1998) 2602. [3] M. Isobe and Y. Ueda, J. Phys

  12. DOI: 10.1002/asia.200700054 Single-Crystalline and Near-Monodispersed NaMF3 (M=Mn, Co, Ni, Mg)

    E-Print Network [OSTI]

    Gao, Song

    importance.[1a,b,2] As important inorganic functional materials, complex metal fluorides such as AI MII F3, the NaMF3 (M=Mn, Co, Ni) nanoplates were partially aligned to form nanoar- rays on copper TEM grids Materials and Bioinorganic Chemistry Peking University, Beijing 100871 (China) Fax: (+86)10-6275-4179 E

  13. Synthesis of Na1.25V3O8 Nanobelts with Excellent Long-Term Stability for Rechargeable Lithium-Ion Batteries

    E-Print Network [OSTI]

    Cao, Guozhong

    by the calcination temperatures. As cathode materials for lithium ion batteries, the Na1.25V3O8 nanobelts synthesized.25V3O8 nanobelts are promising cathode materials for secondary lithium batteries. KEYWORDS: sodium vanadium oxide, nanobelts, sol-gel, lithium-ion batteries, long-term stability 1. INTRODUCTION Because

  14. Study of a layered iron(III) phosphate phase Na3Fe3(PO4)4 used as positive electrode in lithium batteries

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    prepared by solid-state reaction was studied as positive electrode in lithium batteries. Up to 1.9 Li and lithium batteries. 1. Introduction : Recently, a new class of cathodic material based on iron phosphatesStudy of a layered iron(III) phosphate phase Na3Fe3(PO4)4 used as positive electrode in lithium

  15. Nanoparticle/Graphene Capsules by Capillary Molding K. Sohn1, Y. J. Na1, H. Chang2, K. Roh2, H. D. Jang2 and J. Huang1

    E-Print Network [OSTI]

    Shahriar, Selim

    MRSEC Nanoparticle/Graphene Capsules by Capillary Molding K. Sohn1, Y. J. Na1, H. Chang2, K. Roh2 Resources K. Sohn, et al., Chem. Comm., 48. 2, 5968 (2012). Hollow graphene capsules are synthesized by capillary molding of graphene oxide (GO) sheets against polystyrene bead template in evaporating aerosol

  16. Discrete Li-occupation versus pseudo-continuous Na-occupation and their relationship with structural change behaviors in Fe?(MoO?)?

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Yue, Ji-Li [Fudan Univ., Shanghai (China); Zhou, Yong-Ning [Brookhaven National Lab. (BNL), Upton, NY (United States); Shi, Si-Qi [Shanghai Univ., Shanghai (China); Shadike, Zulipiya [Fudan Univ., Shanghai (China); Huang, Xuan-Qi [Fudan Univ., Shanghai (China); Luo, Jun [Shanghai Univ., Shanghai (China); Yang, Zhen-Zhong [Chinese Academy of Sciences (CAS), Beijing (China); Li, Hong [Chinese Academy of Sciences (CAS), Beijing (China); Gu, Lin [Chinese Academy of Sciences (CAS), Beijing (China); Yang, Xiao-Qing [Brookhaven National Lab. (BNL), Upton, NY (United States); Fu, Zheng-Wen [Fudan Univ., Shanghai (China)

    2015-03-06T23:59:59.000Z

    The key factors governing the single-phase or multi-phase structural change behaviors during the intercalation/deintercalation of guest ions have not been well studied and understood yet. Through systematic studies of orthorhombic Fe?(MoO?)? electrode, two distinct guest ion occupation paths, namely discrete one for Li and pseudo-continuous one for Na, as well as their relationship with single-phase and two-phase modes for Na? and Li?, respectively during the intercalation/deintercalation process have been demonstrated. For the first time, the direct atomic-scale observation of biphasic domains (discrete occupation) in partially lithiated Fe?(MoO?)? and the one by one Na occupation (pseudo-continuous occupation) at 8d sites in partially sodiated Fe?(MoO?)? are obtained during the discharge processes of Li/Fe?(MoO?)? and Na/Fe?(MoO?)? cells respectively. Our combined experimental and theoretical studies bring the new insights for the research and development of intercalation compounds as electrode materials for secondary batteries.

  17. arXiv:1312.1524v1[math.NA]5Dec2013 THE BUBBLE TRANSFORM: A NEW TOOL FOR ANALYSIS OF

    E-Print Network [OSTI]

    Winther, Ragnar

    arXiv:1312.1524v1[math.NA]5Dec2013 THE BUBBLE TRANSFORM: A NEW TOOL FOR ANALYSIS OF FINITE ELEMENT estimates for various finite element methods. In particular, for the analysis of mixed finite element be very useful, but hard to construct, is the analysis of the so-called p-version of the finite element

  18. Neutron diffraction and electrochemical studies of Na0.79(Co,Mn)O2 cathodes for sodium-ion batteries

    SciTech Connect (OSTI)

    Beck, Faith R [National Energy Technology Laboratory (NETL); Cheng, Yongqiang [ORNL; Feygenson, Mikhail [ORNL; Bridges, Craig A [ORNL; Moorhead-Rosenberg, Z [Oak Ridge National Laboratory (ORNL); Manthiram, Arumugam [University of Texas at Austin; Goodenough, J. B. [University of Texas at Austin; Paranthaman, Mariappan Parans [ORNL; Manivannan, A. [National Energy Technology Laboratory (NETL)

    2014-01-01T23:59:59.000Z

    Na0.79CoO2 and Na0.79Co0.7Mn0.3O2 with a layered hexagonal structure (P2-type) were synthesized by the Pechini process followed by heat treatment at elevated temperatures in order to achieve the crystalline phases. The samples were characterized with x-ray diffraction, neutron diffraction, magnetic measurements and electrochemical charge-discharge cycling. X-ray diffraction confirmed the P2 layered hexagonal structure after heat treatment at 900 C in air. Neutron diffraction patterns confirm Mn doping on Co sites without forming pronounced Mn-Co ordering. Cyclic voltammetry showed the oxidation and reduction peaks of Co and Mn, indicating the intercalation and de-intercalation behavior of the Na ions. A discharge capacity of 60 mAh/g was achieved for both the compositions, with the Na0.79Co0.70Mn0.3O2 composition showing a more stable discharge capacity up to 60 cycles.

  19. Simulation of the Bishop Steam Foam Pilot by T.W. Patzek and N.A. h4yhiil, Shell Development Co.

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    ,.. SEW SPE 18786 Simulation of the Bishop Steam Foam Pilot by T.W. Patzek and N.A. h4yhiil, Shell a simple model of steam foam transport and apply it to the Shell Kern River Bishop pilot. The only an incremental 5.5 percent OOIP recovery due to steam foam and additional 3 percent OOIP due to infill wells

  20. Syntheses and properties of a series of chromium vanadates ACrV{sub 2}O{sub 7} (A=Na, K, Rb, Cs) with layered structure

    SciTech Connect (OSTI)

    Wang Yonggang; Liang Jie [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Wen Ting [Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou, Henan 450006 (China); Li Kuo [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Wang Yingxia, E-mail: wangyx@pku.edu.cn [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Li Guobao; Liao Fuhui [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Lin Jianhua, E-mail: jhlin@pku.edu.cn [Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China)

    2012-08-15T23:59:59.000Z

    A series of layered compounds ACrV{sub 2}O{sub 7} (A=Na, K, Rb, Cs) were investigated by means of powder X-ray diffraction technique, thermal analysis and IR spectroscopy. As a new member in this family, the structure of CsCrV{sub 2}O{sub 7} is confirmed by Rietveld refinement applying powder X-ray diffraction data. Isostructural NaCrV{sub 2}O{sub 7} was obtained by ion-exchange reaction of KCrV{sub 2}O{sub 7} in NaNO{sub 3} melt under 350 Degree-Sign C and was testified to be a metastable phase. These compounds crystallize in a monoclinic structure in the space group P2/c, and consist of planar CrV{sub 2}O{sub 7}{sup -} slabs interleaved by alkali-metal cations. ACrV{sub 2}O{sub 7} (A=K, Rb, Cs) present decreasing melting points and characteristic vibration of V=O bond in IR spectra. Magnetic measurements reveal weak antiferromagnetic interactions between Cr{sup 3+} cations in the isolated chains. - Graphical Abstract: A series of layered chromium vanadates ACrV{sub 2}O{sub 7} (A=Na, K, Rb, Cs) have been synthesized by direct solid state reactions and ion-exchange routes. The interlayer alkali-metal cations were testified ion-exchangeable by some smaller monovalent cations. Highlights: Black-Right-Pointing-Pointer The entire family of ACrV{sub 2}O{sub 7} (A=Na, K, Rb, Cs) have been prepared via solid-state reactions and ion-exchange routes. Black-Right-Pointing-Pointer CsCrV{sub 2}O{sub 7} and a metastable phase of NaCrV{sub 2}O{sub 7} (ie-NaCrV{sub 2}O{sub 7}) were synthesized for the first time. Black-Right-Pointing-Pointer Structural characterization, spectra features and physical property measurements were carried out contrastively. Black-Right-Pointing-Pointer Alkali-metal cations in the layered structure were testified to be ion-exchangeable with smaller monovalent ions.

  1. Rapid gasification of nascent char in steam atmosphere during the pyrolysis of Na- and Ca-ion-exchanged brown coals in a drop-tube reactor

    SciTech Connect (OSTI)

    Ondej Maek; Sou Hosokai; Koyo Norinaga; Chun-Zhu Li; Jun-ichiro Hayashi [Hokkaido University, Kita-ku (Japan). Center for Advanced Research of Energy Conversion Materials

    2009-09-15T23:59:59.000Z

    Several recent studies on in situ steam gasification of coal suggest a possibility of extremely fast steam gasification of char from rapid pyrolysis of pulverized brown coal. The unprecedented rate of char steam gasification can be achieved by exposing nascent char, that is, after tar evolution (temperature range >600{sup o}C), but before devolatilization (<900{sup o}C), to steam in the presence of Na and/or Ca dispersed in/on the char. In this study, we conducted rapid pyrolysis experiments using ion-exchanged Loy Yang brown coal samples, that is, H-form coal with Na/Ca contents <0.001 wt %, Na-form coal with Na content = 2.8 wt % and Ca-form coal with Ca content = 3.2 wt %. These samples were pyrolyzed in an atmospheric drop-tube reactor at a temperature of 900{sup o}C, inlet steam concentration of 50 vol. %, and a particle residence times of 2.8 s. The char yields from the pyrolysis of Na-form and Ca-form coals were as low as 12 and 33% on the respective coal carbon bases, and accounted for only 18 and 53% of the char yields from the full devolatilization of the respective coals at 900{sup o}C. In addition, the pyrolysis also consumed as much as 0.7-1.1 mol of H{sub 2}O per mol of coal C. On the other hand, the nascent char from the H-form coal allowed carbon deposition from the nascent tar, resulting in a char yield as high as 115% of that from the full devolatilization. The chars from the Na-form and Ca-form coals also acted as catalysts for steam reforming of tar, which was evidenced by significant negative synergistic effects of blending of H-form coal with Na-form coal or Ca-form coal on the tar and soot yields. 57 refs., 6 figs.

  2. {gamma}-Radiolysis of NaCl Brine in the Presence of UO{sub 2}(s): Effects of Hydrogen and Bromide

    SciTech Connect (OSTI)

    Metz, Volker; Bohnert, Elke; Kelm, Manfred; Schild, Dieter; Kienzler, Bernhard [Institute for Radioactive Waste Disposal (FZK-INE), Forschungszentrum Karlsruhe / Research Center Karlsruhe, Helmholtz-Platz, Eggenstein-Leopoldshafen, D-76344 (Germany); Reinhardt, Juergen; Buchmeiser, Michael R. [Leibniz-Institut fuer Oberflaechenmodifizierung, IOM, Permoserstr. 15, Leipzig, D-04318 (Germany)

    2007-07-01T23:59:59.000Z

    A concentrated NaCl solution was {gamma}-irradiated in autoclaves under a pressure of 25 MPa. A set of experiments were conducted in 6 mol (kg H{sub 2}O){sup -1} NaCl solution in the presence of UO{sub 2}(s) pellets; in a second set of experiments, {gamma}-radiolysis of the NaCl brine was studied without UO{sub 2}(s). Hydrogen, oxygen and chlorate were formed as long-lived radiolysis products. Due to the high external pressure, all radiolysis products remained dissolved. H{sub 2} and O{sub 2} reached steady state concentrations in the range of 5.10{sup -3} to 6.10{sup -2} mol (kg H{sub 2}O){sup -1} corresponding to a partial gas pressure of {approx}2 to {approx}20 MPa. Radiolytic formation of hydrogen and oxygen increased with the concentration of bromide added to solution. Both, in the presence of bromide, resulting in a relatively high radiolytic yield, and in the absence of bromide surfaces of the UO{sub 2}(s) samples were oxidized, and concentration of dissolved uranium reached the solubility limit of the schoepite / NaUO{sub 2}O(OH)(cr) transition. At the end of the experiments, the pellets were covered by a surface layer of a secondary solid phase having a composition close to Na{sub 2}U{sub 2}O{sub 7}. The experimental results demonstrate that bromide counteracts an H{sub 2} inhibition effect on radiolysis gas production, even at a concentration ratio of [H{sub 2}] / [Br{sup -}] > 100. The present observations are related to the competitive reactions of OH radicals with H{sub 2}, Br{sup -} and Cl{sup -}. A similar competition of hydrogen and bromide, controlling the yield of {gamma}-radiolysis products, is expected for solutions of lower Cl{sup -} concentration. (authors)

  3. Phase transition upon K{sup +} ion exchange into Na-low silica X: Combined NMR and synchrotron X-ray powder diffraction study

    SciTech Connect (OSTI)

    Lee, Y.; Parise, J.B. [State Univ. of New York, Stony Brook, NY (United States)] [State Univ. of New York, Stony Brook, NY (United States); Carr, S.W. [ANSTO, Menai (Australia)] [ANSTO, Menai (Australia)

    1998-09-01T23:59:59.000Z

    The mechanism by which K{sup +} ions exchange into zeolite Na-low silica X (LSX) (Na{sub 96}Al{sub 96}Si{sub 96}O{sub 384}{center_dot}nH{sub 2}O) has ben determined by studying structures of the Na-LSX and K-LSX end members in the Na-K LSX solid solution series as well as samples exchanged at the 20%, 42% and 80% K{sup +} levels. A preliminary investigation using {sup 29}Si MAS NMR spectroscopy revealed a two-phase region in the solid solution near 80% K{sup +} exchange. Rietveld analysis of the powder diffraction data collected from hydrated samples showed that, up to 42% of K{sup +} exchange, K{sup +} ions were located preferentially at site I{prime}, just outside the double 6-ring (D6R) in the sodalite age, and at site II, above the single 6-ring (S6R) in the supercage. Introduction of K{sup +} ions into site I{prime} repositioned Na{sup +} ions into site I, at the center of the D6R. An abrupt change in the cubic lattice parameter from 25.0389(5) to 25.2086(5) {angstrom} marked the formation of a second phase at the 80% K{sup +}-exchange level as K{sup +} ions began to occupy site I. No coexistence of phases was observed for the fully K{sup +}-exchanged sample (a = 25.2486(2) {angstrom}), where sites I and II were fully occupied by K{sup +} ions.

  4. Microwave-hydrothermal synthesis of nanostructured Na-birnessites and phase transformation by arsenic(III) oxidation

    SciTech Connect (OSTI)

    Dias, Anderson [Departamento de Quimica, Universidade Federal de Ouro Preto, 35400-000 Ouro Preto, MG (Brazil)], E-mail: anderson_dias@iceb.ufop.br; Sa, Rodrigo G.; Spitale, Matheus C.; Athayde, Maycon; Ciminelli, Virginia S.T. [DEMET, UFMG, Rua Espirito Santo 35, Sala 206, 30160-030 Belo Horizonte, MG (Brazil)

    2008-06-03T23:59:59.000Z

    Microwave-hydrothermal synthesis was employed to produce Na-birnessites. Crystalline, single-phase materials were obtained at temperatures as low as 120 deg. C and times as short as 1 min. X-ray diffraction and Raman spectroscopy were used to characterize the structural features of the nanostructured powders. Birnessites possessed a monoclinic structure in space group C2/m with nine Raman-active bands, all of which were observed for the first time due to optimized acquisition of the spectroscopic data. The highly reactive materials produced were submitted to sorption experiments with As(III). An oxidative precipitation occurred with the production of Mn(II) arsenate at higher arsenic concentrations. In addition, the formation of hausmannite (Mn{sub 3}O{sub 4}) was confirmed by X-ray diffraction and Raman analyses of the reacted solid phase. The observed 14 Raman-active modes were adjusted according to the tetragonal I4{sub 1}/amd space group for hausmannite. An additional band related to the breathing mode of the arsenate was observed, leading to the conclusion that adsorption onto hausmannite takes place in addition to the oxidative precipitation of manganese arsenate.

  5. Development of Fragmented Low-Z Ion Beams for the NA61 Experiment at the CERN SPS

    E-Print Network [OSTI]

    Efthymiopoulos, I; Bohl, T; Breuker, H; Calviani, M; Manglunki, D; Mataguez, S; Maury, S; Valderanis, C; Cornelis, K; Spanggaard, J; Cettour-Cave, S; Gazdzicki, M; Seyboth, P; Guber, F; Ivashkin, A

    2011-01-01T23:59:59.000Z

    The NA61 experiment, aims to study the properties of the onset of deconfinement at low SPS energies and to find signatures of the critical point of strongly interacting matter. A broad range in T-?B phase diagram will be covered by performing an energy (13A-158AGeV/c) and system size (p+p, Be+Be, Ar+Ca, Xe+La) scan. In a first phase, fragmented ion beams of 7Be or 11C produced as secondaries with the same momentum per nucleon when the incident primary Pb-ion beam hits a thin Be target will be used. The H2 beam line that transports the beam to the experiment acts as a double spectrometer which combined with a new thin target (degrader) where fragments loose energy proportional to the square of their charge allows the separation of the wanted A/Z fragments. Thin scintillators and TOF measurement for the low energy points are used as particle identification devices. In this paper results from the first test of the fragmented ion beam done in 2010 will be presented showing that a pure Be beam can be obtained sa...

  6. Phase Behavior of Aqueous NA-K-MG-CA-CI-NO3 Mixtures: Isopiestic Measurements and Thermodynamic Modeling

    SciTech Connect (OSTI)

    M.S. Gruszkiewiez; D.A. Palmer; R.D. Springer; P. Wang; A. Anderko

    2006-09-14T23:59:59.000Z

    A comprehensive model has been established for calculating thermodynamic properties of multicomponent aqueous systems containing the Na{sup +}, K{sup +}, Mg{sup 2+}, Ca{sup 2+}, Cl{sup -}, and NO{sub 3}{sup -} ions. The thermodynamic framework is based on a previously developed model for mixed-solvent electrolyte solutions. The framework has been designed to reproduce the properties of salt solutions at temperatures ranging from the freezing point to 300 C and concentrations ranging from infinite dilution to the fused salt limit. The model has been parameterized using a combination of an extensive literature database and new isopiestic measurements for thirteen salt mixtures at 140 C. The measurements have been performed using Oak Ridge National Laboratory's (ORNL) previously designed gravimetric isopiestic apparatus, which makes it possible to detect solid phase precipitation. Water activities are reported for mixtures with a fixed ratio of salts as a function of the total apparent salt mole fraction. The isopiestic measurements reported here simultaneously reflect two fundamental properties of the system, i.e., the activity of water as a function of solution concentration and the occurrence of solid-liquid transitions. The thermodynamic model accurately reproduces the new isopiestic data as well as literature data for binary, ternary and higher-order subsystems. Because of its high accuracy in calculating vapor-liquid and solid-liquid equilibria, the model is suitable for studying deliquescence behavior of multicomponent salt systems.

  7. Electronic dose conversion technique using a NaI(Tl) detector for assessment of exposure dose rate from environmental radiation

    SciTech Connect (OSTI)

    Cho, G.; Kim, H.K. [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of)] [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of); Woo, H.; Oh, G. [Korea Electric Power Research Inst., Taejon (Korea, Republic of)] [Korea Electric Power Research Inst., Taejon (Korea, Republic of); Ha, D.K. [Samchang Enterprise Co., Anyang (Korea, Republic of)] [Samchang Enterprise Co., Anyang (Korea, Republic of)

    1998-06-01T23:59:59.000Z

    An electronic dose conversion technique to assess the exposure dose rate due to environmental radiation especially from terrestrial sources was developed. For a 2 x 2 inch cylindrical NaI(Tl) scintillation detector, pulse-height spectra were obtained for gamma-rays of energy up to 3 MeV by Monte Carlo simulation. Based on the simulation results and the experimentally fitted energy resolution, dose conversion factors were calculated by a numerical decomposition method. These calculated dose conversion factors were, then, electronically implemented to a developed dose conversion unit (DCU) which is a microprocessor-controlled single channel analyzer (SCA) with variable discrimination levels. The simulated spectra were confirmed by measurement of several monoenergetic gamma spectra with a multichannel analyzer (MCA). The converted exposure dose rates from the implemented dose conversion algorithm in the DCU were also evaluated for a field test in the vicinity of the nuclear power plant at Kori as well as for several standard sources, and the results were in good agreement with separate measurement by a high pressure ionization chamber (HPIC) within a 6.4% deviation.

  8. Laboratory Test Report for Fujitsu 12RLS and Mitsubishi FE12NA Mini-Split Heat Pumps

    SciTech Connect (OSTI)

    Winkler, J.

    2011-09-01T23:59:59.000Z

    Mini-split heat pumps are being proposed as a new retrofit option to replace resistance heating in the Pacific Northwest. NREL has previously developed a field test protocol for mini-split systems to ensure consistent results from field tests. This report focuses on the development of detailed system performance maps for mini-split heat pumps so that the potential benefits of mini-split systems can be accurately analyzed for different climate regions and housing types. This report presents laboratory test results for two mini-split heat pumps. Steady-state heating and cooling performance for the Fujitsu 12RLS and Mitsubishi FE12NA was tested under a wide range of outdoor and indoor temperatures at various compressor and fan speeds. Cycling performance for each unit was also tested under both modes of operation. Both systems performed quite well under low loads and the experimental test data aligned with manufacturer reported values. Adequate datasets were attained to promote performance modeling of these two systems in the future.

  9. Boron uptake in tumors, cerebrum and blood from [10B]NA4B24H22S2

    DOE Patents [OSTI]

    Slatkin, Daniel N. (Bayside, NY); Micca, Peggy L. (Patchogue, NY); Fairchild, Ralph G. (Setauket, NY)

    1988-01-01T23:59:59.000Z

    A stable boronated (.sup.10 B-labeled) compound, sodium mercaptoundecahydrododecaborate is infused in the form of the disulfide dimer, [.sup.10 B]Na.sub.4 B.sub.24 H.sub.22 S.sub.2, at a dose of about 200 .mu.g .sup.10 B per gm body weight. The infusion is performed into the blood or peritoneal cavity of the patient slowly over a period of many days, perhaps one week or more, at the rate of roughly 1 .mu.g .sup.10 B per gm body weight per hour. Use of this particular boronated dimer in the manner or similarly to the manner so described permits radiotherapeutically effective amounts of boron to accumulate in tumors to be treated by boron neutron capture radiation therapy and also permits sufficient retention of boron in tumor after the cessation of the slow infusion, so as to allow the blood concentration of .sup.10 B to drop or to be reduced artificially to a radiotherapeutically effective level, less than one-half of the concentration of .sup.10 B in the tumor.

  10. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Amaral, José Nelson

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture­blocks initially percolated to each SPELL in the grid. . . . . . . . . . . . . 8 4 Sub­blocks in each SPELL after the first movement of blocks of A and sub­blocks of B between neighbor processors in the grid

  11. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Gao, Guang R.

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture and Parallel Systems Laboratory Self­Avoiding Walks over Two­Dimensional Adaptive Unstructured Grids Gerd Heber of adaptive unstructured grids. i #12; Contents 1 Introduction 1 2 Definitions 2 3 Existence 4 3.1 A Closer

  12. Program Thursday, March 10, 2011 UNIVERSITY of DELAWARE

    E-Print Network [OSTI]

    Firestone, Jeremy

    .m. Welcome - UDEI Michael Klein - Director, UD Energy Institute UD Perspective on Energy Mark Barteau, Institute of Energy Conversion 11:15 a.m. Solar Hydrogen Robert Opila - Professor, Materials ScienceProgram Thursday, March 10, 2011 UNIVERSITY of DELAWARE Energy Institute Annual Symposium www.energy

  13. Community Police Academy Hosted By: University of Delaware Police

    E-Print Network [OSTI]

    Firestone, Jeremy

    Community Police Academy Hosted By: University of Delaware Police When: Wednesdays, 6:00 p.m. - 9:00 p.m. (March 4th through April 29th , 2015) Where: 413 Academy Street Newark DE 19716 - University should I expect to learn: The Community Police Academy (CPA) is an informative learning process

  14. University of Delaware 2014 Campus Security and Fire Safety Report

    E-Print Network [OSTI]

    Firestone, Jeremy

    of Criminal Actions or Emergencies 5 Access to Campus Facilities 6 Maintenance and Security of Campus://www.udel.edu//police/policies/missing-student.html The University of Delaware is a state-assisted, privately controlled institution of higher education. The main

  15. University of Delaware Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Gao, Guang R.

    University of Delaware Department of Electrical and Computer Engineering Computer Architecture of the art. To meet that need, Thomas Sterling's group at Louisiana State University are developing Paralle parallelism than the current state of the art. To meet that need, Thomas Sterling's group at Louisiana State

  16. (Ca,Na)(Zn,Mn){sub 2}As{sub 2}: A new spin and charge doping decoupled diluted ferromagnetic semiconductor

    SciTech Connect (OSTI)

    Zhao, K.; Chen, B. J.; Deng, Z.; Zhao, G. Q.; Zhu, J. L.; Liu, Q. Q.; Wang, X. C. [Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Collaborative Innovation Center of Quantum Matter, Beijing (China); Han, W. [Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Collaborative Innovation Center of Quantum Matter, Beijing (China); Department of Physics, Chengde Mingzu College, Chengde (China); Frandsen, B.; Liu, L.; Cheung, S.; Uemura, Y. J. [Department of Physics, Columbia University, New York, New York 10027 (United States); Ning, F. L. [Department of Physics, Zhejiang University, Hangzhou 310027 (China); Munsie, T. J. S.; Medina, T.; Luke, G. M. [Department of Physics and Astronomy, McMaster University, Hamilton, L8S 4M1 (Canada); Carlo, J. P. [Department of Physics, Villanova University, Villanova, Pennsylvania 19085 (United States); Munevar, J. [Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil); Zhang, G. M. [Department of Physics, Tsinghua University, Beijing (China); Jin, C. Q., E-mail: JIN@iphy.ac.cn [Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Collaborative Innovation Center of Quantum Matter, Beijing (China); Department of Physics, Columbia University, New York, New York 10027 (United States)

    2014-10-28T23:59:59.000Z

    Here, we report the successful synthesis of a spin- and charge-decoupled diluted magnetic semiconductor (DMS) (Ca,Na)(Zn,Mn){sub 2}As{sub 2}, crystallizing into the hexagonal CaAl{sub 2}Si{sub 2} structure. The compound shows a ferromagnetic transition with a Curie temperature up to 33?K with 10% Na doping, which gives rise to carrier density of n{sub p}???10{sup 20?}cm{sup ?3}. The new DMS is a soft magnetic material with H{sub C}?

  17. Luminescence properties of Eu-activated alkaline and alkaline-earth silicate Na{sub 2}Ca{sub 3}Si{sub 6}O{sub 16}

    SciTech Connect (OSTI)

    Wang, Jing [College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China); Huang, Yanlin, E-mail: huang@suda.edu.cn [College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China); Wang, Xigang, E-mail: wangxigang@suda.edu.cn [College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China); Qin, Lin [College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China); Seo, Hyo Jin, E-mail: hjseo@pknu.ac.kr [Department of Physics and Center for Marine-Integrated Biomedical Technology, Pukyong National University, Busan 608-737 (Korea, Republic of)

    2014-07-01T23:59:59.000Z

    Highlights: • A novel yellow-emitting alkaline and alkaline-earth silicate Na{sub 2}Ca{sub 3}Si{sub 6}O{sub 16}:Eu{sup 2+} was first developed. • Under excitation with UV or near UV light the silicate presents broad emission band centered at 580 nm. - Abstract: Yellow-emitting phosphors of Na{sub 2}Ca{sub 3}Si{sub 6}O{sub 16}:Eu{sup 2+} was prepared by wet chemistry sol–gel method. X-ray powder diffraction and SEM measurements were applied to characterize the structure and morphology, respectively. The luminescence properties were investigated by the photoluminescence excitation and emission spectra, decay curve (lifetimes), CIE coordinates and the internal quantum efficiencies. The excitation spectra can match well with the emission light of near UV-LED chips (360–400 nm). Na{sub 2}Ca{sub 3}Si{sub 6}O{sub 16}:Eu{sup 2+} presents a symmetric emission band from 4f{sup 6}5d{sup 1} ? 4f{sup 7}({sup 8}S{sub 7/2}) transitions of Eu{sup 2+} ions on doping below 3.0 mol%. On increasing Eu-doping levels, the sample contains two kinds of emission centers, i.e., Eu{sup 2+} and Eu{sup 3+} ions, which present the characteristic broad band (5d ? 4f) and narrower (4f ? 4f) luminescence lines, respectively. The energy transfer, the luminescence thermal stability (activation energy ?E for thermal quenching) and luminescence mechanism of Na{sub 2}Ca{sub 3}Si{sub 6}O{sub 16}:Eu{sup 2+} phosphors were discussed by analyzing the relationship between the luminescence characteristics and the crystal structure.

  18. Electronic, structural, phonon dynamical, and CO{sub 2} capture properties of LiMZrO{sub 3} (M=Na, K) by ab initio thermodynamic investigation

    SciTech Connect (OSTI)

    Duan, Yuhua

    2014-01-01T23:59:59.000Z

    The electronic, structural and phonon properties of LiMZrO{sub 3} (M=Na, K) were investigated by the density functional theory and lattice phonon dynamics. Their thermodynamic properties for CO{sub 2} absorption/desorption were analyzed in comparison with the corresponding M{sub 2}ZrO{sub 3}. Two substituted configurations of LiMZrO{sub 3} were created from Li{sub 2}ZrO{sub 3}. Both types of LiNaZrO3 have direct band gaps with values of 3.84 eV and 3.49 eV respectively. While in the case of LiKZrO{sub 3}, one type has an indirect band gap of 3.79 eV between ? and M high symmetric points while another has a direct band gap of 3.12 eV. The phonon dispersions and phonon density of states of LiMZrO{sub 3} were calculated with the direct method. From the calculated thermodynamic properties of LiMZrO{sub 3} reacting with CO{sub 2}, our results showed that by doping Na into Li{sub 2}ZrO{sub 3}, the obtained new solid LiNaZrO{sub 3} has better performance as a CO{sub 2} sorbent applying to post-combustion capture technology. For K doping into Li{sub 2}ZrO{sub 3}, our calculated thermodynamic results showed that the new solid LiKZrO{sub 3} does not gain improvement on its CO{sub 2} capture performance because its regeneration temperature is much higher than Li{sub 2}ZrO{sub 3}.

  19. Enhancing upconversion emissions of NaTm0.02YbxY0.98xF4 nanocrystals through increasing Yb3

    E-Print Network [OSTI]

    Cao, Wenwu

    Enhancing upconversion emissions of NaTm0.02YbxY0.98ÀxF4 nanocrystals through increasing Yb3 þ the enhancement of the 470 nm emissions, which is in good agreement with the experimental data. & 2011 Elsevier B are vital to realize multicolor fluorescence bio-labels [3,4]. Blue UC emissions can also excite several FDA

  20. Identification of a Pool of Non-pumping Na/K-ATPase* Received for publication,September 27, 2006, and in revised form, February 6, 2007 Published, JBC Papers in Press,February 12, 2007, DOI 10.1074/jbc.M609181200

    E-Print Network [OSTI]

    Brand, Paul H.

    Identification of a Pool of Non-pumping Na/K-ATPase* Received for publication,September 27, 2006 ascribed many non-pumping functions to the Na/K-ATPase. Here, we present experimental evidence functions other than ion pumping. This "non-pumping" pool of Na/K-ATPase, like the pumping pump, binds

  1. Ion exchange-induced dissolution of calcite in Na-montmorillonite/CaCO?b3?s systems: its effect on hydraulic conductivity, CaCO?b3?s dissolution kinetics, and CaCO?b3?s equilibrium relations 

    E-Print Network [OSTI]

    Del Rio Durand, Jose Bruno

    1990-01-01T23:59:59.000Z

    Minerals Repository, Clay Minerals Society, University of Missouri, Columbia, MQ) was treated with pH 5. 5 Na-acetate in order to remove traces of CaCO3; complete Na-saturation of the sample was achieved by successive washings with 1 M NaC1... was present. The DD reaction resulted in pH values of approximately 10, a decrease of the exchangeable sodium percemage (ESP), and in a substantial enhancement of calcite dissolution. The rate of calcite dissolution in these systems, as well as in batch...

  2. Synthesis and characterization of ASnF{sub 3} (A=Na{sup +}, K{sup +}, Rb{sup +}, Cs{sup +})

    SciTech Connect (OSTI)

    Thao Tran, T. [Department of Chemistry, University of Houston, 136 Fleming Building, Houston, TX 77204-5003 (United States); Shiv Halasyamani, P., E-mail: psh@uh.edu [Department of Chemistry, University of Houston, 136 Fleming Building, Houston, TX 77204-5003 (United States); Department of Chemistry, Aalto University, Kemistintie 1, 02150 Espoo (Finland)

    2014-02-15T23:59:59.000Z

    A family of alkali metal tin(II) fluorides, ASnF{sub 3} (A=Na{sup +}, K{sup +}, Rb{sup +}, or Cs{sup +}), has been synthesized through a low temperature solvothermal technique. A fluorine free solvent, methanol, was used in the synthesis. NaSnF{sub 3}, KSnF{sub 3}, and RbSnF{sub 3} have been reported previously; however for RbSnF{sub 3} the reported space group is incorrect. CsSnF{sub 3} is a new alkali tin(II) fluoride, and exhibits a ‘zero-dimensional’ crystal structure with isolated SnF{sub 3}{sup ?} anions separated by Cs{sup +} cations. In addition to the synthesis, infrared, UV–vis, thermogravimetric and differential thermal analysis measurements were performed. - Graphical abstract: Ball-and-stick diagrams of CsSnF{sub 3}. Display Omitted - Highlights: • A family of ASnF{sub 3} (A=Na{sup +}, K{sup +}, Rb{sup +} or Cs{sup +}) has been synthesized solvothermally at low temperatures. • Fluorine-free solvent, methanol, was used instead of conventional fluorinating agents. • RbSnF{sub 3} described in the correct space group exhibits infinite chains of corner-sharing SnF{sub 4} polyhedra. • New CsSnF{sub 3} exhibits a ‘zero-dimensional’ crystal structure consisting of isolated SnF{sub 3}{sup ?} anionic polyhedra.

  3. Effects of Mg doping on the remarkably enhanced electrochemical performance of Na3V2(PO4)3 cathode materials for sodium ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Li, Hui [Beijing Inst. of Technology, Beijing (China). Key Lab. of Environmental Science and Engineering, School of Chemical Engineering and Environment; Yu, Xiqian [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.; Bai, Ying [Beijing Inst. of Technology, Beijing (China). Key Lab. of Environmental Science and Engineering, School of Chemical Engineering and Environment; Wu, Feng [Beijing Inst. of Technology, Beijing (China). Key Lab. of Environmental Science and Engineering, School of Chemical Engineering and Environment; Wu, Chuan [Beijing Inst. of Technology, Beijing (China). Key Lab. of Environmental Science and Engineering, School of Chemical Engineering and Environment; Liu, Liang-Yu [Beijing Inst. of Technology, Beijing (China). Key Lab. of Environmental Science and Engineering, School of Chemical Engineering and Environment; Yang, Xiao-Qing [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.

    2015-01-01T23:59:59.000Z

    Na3V2-xMgx(PO4)3/C composites with different Mg2+ doping contents (x=0, 0.01, 0.03, 0.05, 0.07 and 0.1) were prepared by a facile sol-gel method. The doping effects on the crystal structure were investigated by XRD, XPS and EXAFS. The results show that low dose doping Mg2+ does not alter the structure of the material, and magnesium is successfully substituted for vanadium site. The Mg doped Na3V2-xMgx(PO4)3/C composites exhibit significant improvements on the electrochemistry performances in terms of the rate capability and cycle performance, especially for the Na3V1.95Mg0.05(PO4)3/C. For example, when the current density increased from 1 C to 30 C, the specific capacity only decreased from 112.5 mAh g-1 to 94.2 mAh g-1 showing very good rate capability. Moreover, even cycling at a high rate of 20 C, an excellent capacity retention of 81% is maintained from the initial value of 106.4 mAh g-1 to 86.2 mAh g-1 at the 50th cycle. Enhanced rate capability and cycle performance can be attributed to the optimized particle size, structural stability and enhanced ionic and electronic conductivity induced by Mg doping.

  4. Effects of Al2O3, B2O3, Na2O, and SiO2 on nepheline formation in borosilicate glasses: chemical and physical correlations

    SciTech Connect (OSTI)

    Li, Hong; Hrma, Pavel R.; Vienna, John D.; Qian, Maoxu; Su, Yali; Smith, Donald E.

    2003-06-01T23:59:59.000Z

    Raman spectroscopy was applied to complex sodium alumino-borosilicate glasses that precipitate nepheline as their primary phase. The main focus was on the Raman band at 850 cm-1 wavenumber observed in quenched glasses. Based on the literature, the 850 cm-1 band was assigned to AlIV-O-Si units in which tetrahedral AlIV is substituted for Si in the network, creating[AlO4/2]- anions that are charge-balanced by Na+ cations. The same glasses with various temperature histories were examined with optical microscopy, scanning electron microscopy and transmission electronic microscopy. The results indicated that the 850 cm-1 Raman band was associated with nanocrystals that formed in the melts and were preserved in the quenched samples. The chemistry of these nanocrystals resembled nepheline. Models relating the intensity of the Raman band at 850 cm-1 and the liquidus temperature (TL) to glass composition revealed that a relationship exists between these two properties. An increase in B2O3 and Si O2 decreased the Raman band intensity and the TL, whereas an increase in Al2O3 and Na2O increased both properties. These effects were attributed to the influence of various oxides on the Na+[AlO4/2]- activity in the melt.

  5. Effects of Mg doping on the remarkably enhanced electrochemical performance of Na3V2(PO4)3 cathode materials for sodium ion batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Li, Hui; Yu, Xiqian; Bai, Ying; Wu, Feng; Wu, Chuan; Liu, Liang-Yu; Yang, Xiao-Qing

    2015-01-01T23:59:59.000Z

    Na3V2-xMgx(PO4)3/C composites with different Mg2+ doping contents (x=0, 0.01, 0.03, 0.05, 0.07 and 0.1) were prepared by a facile sol-gel method. The doping effects on the crystal structure were investigated by XRD, XPS and EXAFS. The results show that low dose doping Mg2+ does not alter the structure of the material, and magnesium is successfully substituted for vanadium site. The Mg doped Na3V2-xMgx(PO4)3/C composites exhibit significant improvements on the electrochemistry performances in terms of the rate capability and cycle performance, especially for the Na3V1.95Mg0.05(PO4)3/C. For example, when the current density increased from 1 C to 30 C, the specific capacitymore »only decreased from 112.5 mAh g-1 to 94.2 mAh g-1 showing very good rate capability. Moreover, even cycling at a high rate of 20 C, an excellent capacity retention of 81% is maintained from the initial value of 106.4 mAh g-1 to 86.2 mAh g-1 at the 50th cycle. Enhanced rate capability and cycle performance can be attributed to the optimized particle size, structural stability and enhanced ionic and electronic conductivity induced by Mg doping.« less

  6. NA57 Results

    SciTech Connect (OSTI)

    Antinori, F.; Dainese, A.; Morando, M.; Quercigh, E.; Segato, G.; Soramel, F.; Turrisi, R. [University of Padua, Padua (Italy); INFN, Padua (Italy); Bacon, P.; Bloodworth, I.; Bull, S. A.; Clarke, R. F.; Evans, D.; Jones, G. T.; Jovanovic, P.; Jusko, A.; Kinson, J. B.; Lietava, R.; Norman, P. I.; Platt, R. J.; Villalobos-Baillie, O. [University of Birmingham, Birmingham (United Kingdom)] (and others)

    2006-04-11T23:59:59.000Z

    Hyperon enhancements at 160 and 40 A Gev/c are presented and compared. The momentum spectra are analysed in the framework of the blast wave model and freeze-out temperature, transverse and longitudinal flows are extracted. Nuclear modification factors are presented and discussed.

  7. NA Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA /Ml'.SolarUSAdvancedMuseum Day at0019 Forx N yo

  8. 20Na.PDF

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruaryOctober 2, 2014Energy,F β--Decay EvaluatedMgNNa

  9. 20Na_78.PDF

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032) -Less isNFebruaryOctober 2, 2014Energy,F β--Decay EvaluatedMgNNa

  10. DOE/NA-0027

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved: 5-13-14Russianvolunteer |At.<ENDMENT/MODIFICATION NO. 3.3 FISCAL127

  11. Synthesis and characterization of a NaSICON series with general formula Na{sub 2.8}Zr{sub 2-y}Si{sub 1.8-4y}P{sub 1.2+4y}O{sub 12} (0=

    SciTech Connect (OSTI)

    Essoumhi, A. [Laboratoire de Physico-chimie du Materiau et du Milieu Marin, Faculte des Sciences et Techniques, Universite de Toulon et du Var, 83957 La Garde Cedex (France); Favotto, C. [Laboratoire de Physico-chimie du Materiau et du Milieu Marin, Faculte des Sciences et Techniques, Universite de Toulon et du Var, 83957 La Garde Cedex (France); Mansori, M. [Laboratoire de Chimie des Materiaux et de l'environnement, Faculte des Sciences et Techniques, Universite Cadi Ayyad, B.P. 549, 40000 Marrakech-Maroc (France); Satre, P. [Laboratoire de Physico-chimie du Materiau et du Milieu Marin, Faculte des Sciences et Techniques, Universite de Toulon et du Var, 83957 La Garde Cedex (France)]. E-mail: satre@univ-tln.fr

    2004-12-01T23:59:59.000Z

    In this work, we present the synthesis and the characterization of ionic conducting ceramics of NaSICON-type (Natrium super ionic conductor). The properties of this ceramic make it suitable for use in electrochemical devices. These solid electrolytes can be used as sensors for application in the manufacturing of potentiometric gas sensors, for the detection of pollutant emissions and for environment control. The family of NaSICON that we studied has as a general formula Na{sub 2.8}Zr{sub 2-y}Si{sub 1.8-4y}P{sub 1.2+4y}O{sub 12} with 0=Na{sub 2.8}Zr{sub 1.775}Si{sub 0.9}P{sub 2.1}O{sub 12} composition.

  12. Chrome Deposit Corporation and the University of Delaware IAC: Another Energy Efficiency Success Story

    Broader source: Energy.gov [DOE]

    Following an Energy Savings Assessment conducted by the University of Delaware's Industrial Assessment Center, Chrome Deposit Corporation's Newark, DE plant is seeing significant energy savings.

  13. EA-1782: University of Delaware Lewes Campus Onsite Wind Energy Project

    Broader source: Energy.gov [DOE]

    The University of Delaware has constructed a wind turbine adjacent to its College of Earth, Ocean, and Environment campus in Lewes, Delaware. DOE proposed to provide the University a $1.43 million grant for this Wind Energy Project from funding provided in the Omnibus Appropriations Act of 2009 (Public Law 111-8) and an additional $1 million provided in the Energy and Water Development Appropriations Act of Fiscal Year 2010. This EA analyzed the potential environmental impacts of the University of Delaware’s Wind Energy Project at its Lewes campus and, for purposes of comparison, an alternative that assumes the wind turbine had not been constructed.

  14. The interference effect of laser-assisted bremsstrahlung emission in Coulomb fields of Ankang Li, Jiaxiang Wang, Na Ren, Pingxiao Wang, Wenjun Zhu, Xiaoya Li, Ross Hoehn, and Sabre Kais

    E-Print Network [OSTI]

    Kais, Sabre

    Ankang Li, Jiaxiang Wang, Na Ren, Pingxiao Wang, Wenjun Zhu, Xiaoya Li, Ross Hoehn, and Sabre Kais Li,3 Ross Hoehn,4 and Sabre Kais4,5 1 State Key Laboratory of Precision Spectroscopy and Department

  15. NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} core/shell nanocomposite: A highly efficient visible-light-driven photocatalyst utilizing upconversion

    SciTech Connect (OSTI)

    Sun, Yuanyuan; Wang, Wenzhong, E-mail: wzwang@mail.sic.ac.cn; Sun, Songmei; Zhang, Ling

    2014-04-01T23:59:59.000Z

    Highlights: • Design and synthesis of NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} based on upconversion. • NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} nanocomposite was prepared for the first time. • Core–shell structure benefits the properties. • Upconversion contributed to the enhanced photocatalytic activity. • Helps to understand the functionality of new type photocatalysts. - Abstract: NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} core/shell nanocomposite was designed and prepared for the first time based on upconversion. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy dispersive X-ray spectroscopy (EDS) and diffuse reflectance spectra (DRS). The results revealed that the as-synthesized NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} consisted of spheres with a core diameter of about 26 nm and a shell diameter of around 6 nm. The core was upconversion illuminant NaYF{sub 4}:Er,Yb and the shell was Bi{sub 2}MoO{sub 6} around the core, which was confirmed by EDS. The NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} exhibited higher photocatalytic activity for the photodecomposition of Rhodamine B (RhB) under the irradiation of Xe lamp and green light emitting diode (g-LED). The mechanism of the high photocatalytic activity was discussed by photoluminescence spectra (PL), which is mainly attributed to upconversion of NaYF{sub 4}:Er,Yb in the NaYF{sub 4}:Er,Yb/Bi{sub 2}MoO{sub 6} nanocomposite and the core–shell structure.

  16. RNA Extraction and Labeling 1. To IP pellet (~ 25 l vol), add 175 l of: 10 mM HEPES-NaOH, pH 7.5

    E-Print Network [OSTI]

    Aris, John P.

    85 RNA Extraction and Labeling 1. To IP pellet (~ 25 µl vol), add 175 µl of: 10 mM HEPES-NaOH, pH 7 Speed-Vac. 7. Labeling 3' ends. To each pellet, add 10 µl containing: 1 X NEB RNA Ligase buffer 10% DMSO precipitate. Use DEPC-treated 3M NaOAc, pH 5. Wash with 75% EtOH and dry. 12. Resuspend pellet completely in 5

  17. Colloyuc C6, supplinzcrlt uu rzo 7, Tornc 41, Juillet 1980,lI(i@' C6-88 Energy levels of F,(Na)-centre in KC1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Colloyuc C6, supplinzcrlt uu rzo 7, Tornc 41, Juillet 1980,lI(i@' C6-88 Energy levels of F,(Na)-centre in KC1 C. K. Ong PhysicsDepartment,Ahmadu Bello University,Zaria, Nigeria RCsumC. - Nous avons calcult les energies des bandes d'absorption du centre F,(Na) dans KC1 par la methode du reseau statique

  18. A triple-resonant RF coil setup for 1H, 23Na and 39K MR imaging of the rat brain at 9.4T M. A. Augath1,2

    E-Print Network [OSTI]

    A triple-resonant RF coil setup for 1H, 23Na and 39K MR imaging of the rat brain at 9.4T M. A. Augath1,2 , P. Heiler1 , S. Kirsch1 , and L. R. Schad1 1 Computer Assisted Clinical Medicine, Faculty concentrations of 23 Na and 39 K offers a very promising approach in clinical diagnostics. For MR imaging of both

  19. J.C. Hillesheim, F.I. Parra,M. Barnes, N.A. Crocker, H. Meyer, W.A. Peebles, R. Scannell, A. Thornton, and the MAST Team

    E-Print Network [OSTI]

    J.C. Hillesheim, F.I. Parra,M. Barnes, N.A. Crocker, H. Meyer, W.A. Peebles, R. Scannell, A, 4 H. Meyer, 1 W.A. Peebles, 4 R. Scannell, 1 A. Thornton, 1 and the MAST Team 1 1 CCFE, Culham rotation on collisionality in MAST J. C. Hillesheim,1, F.I. Parra,2, 1 M. Barnes,3 N.A. Crocker,4 H. Meyer

  20. Temperature-dependent framework–template interaction of |Na{sub 6}(H{sub 2}O){sub 8}|[ZnPO{sub 4}]{sub 6} sodalite

    SciTech Connect (OSTI)

    Robben, Lars, E-mail: lrobben@uni-bremen.de; Gesing, Thorsten M.

    2013-11-15T23:59:59.000Z

    The partial dehydration followed by the decomposition of sodium-zincophosphate-hydrosodalite caused by the total water loss was examined by temperature-dependent X-ray powder diffraction, Fourier transform infrared (FTIR) and Raman spectroscopy as well as thermogravimetry combined with difference thermoanalysis. The dehydration causing the decomposition of this sodalite could be described in a two step-process. Initially two water molecules per unit-cell were lost, changing the interaction between the zincophosphate framework and the remaining water molecules as well as sodium cations as non-framework constituents. In this stage a 3+3 coordination of water molecules and sodium cations in the sodalite cage is observed. Using the autocorrelation function (AC) for the evaluation of the temperature-dependent FTIR spectra of sodalites is reported here for the first time. Calculating the changes in the AC broadness, structural features could well be analyzed due to its correlation with respective structural parameters. Temperature dependent Raman data was used to give a band assignment of bands at Raman shifts below 300 cm{sup ?1}. - Graphical abstract: The thermal decomposition of |Na{sub 6}(H{sub 2}O){sub 8}|[ZnPO{sub 4}]{sub 6} sodalite is a two-step process with an initial loss of two water molecules at 400 K, intermediately stabilizing the highly stressed framework. Further heating leads to a subsequent loss of the remaining six water molecules and a breakup of the sodalite framework. A beryllonite-type NaZnPO{sub 4} is the final product of this process. Display Omitted - Highlights: • The decomposition of |Na{sub 6}(H{sub 2}O){sub 8}|[ZnPO{sub 4}]{sub 6} sodalite is a two-step process. • Initial loss of two water molecule at 400 K stabilizes the sodalite (step 1). • Further heating leads to complete loss of water and structural breakdown. • Autocorrelation of temperature dependent FTIR-spectra gives structural information.

  1. NaLaF{sub 4}:Pr{sup 3+},Yb{sup 3+}, an efficient blue to near infra-red quantum cutter

    SciTech Connect (OSTI)

    Guille, A.; Pereira, A.; Moine, B., E-mail: bernard.moine@univ-lyon1.fr [Université Lyon 1, CNRS UMR 5306, Institut Lumière Matière, Université de Lyon, F-69622 Villeurbanne (France)

    2013-12-01T23:59:59.000Z

    In order to reduce the thermalization losses in solar cells, down-conversion of blue photons into near infra-red photons is a promising solution. In the present paper, we analyse the energy transfer processes between Pr{sup 3+} and Yb{sup 3+} in NaLaF{sub 4} and we show that an efficient quantum-cutting process occurs. Nevertheless, we also show that a back transfer from Yb{sup 3+} toward the {sup 1}G{sub 4} level of Pr{sup 3+} ion leading to emission beyond 1??m reduces the potentiality of this material as a quantum cutter for Si solar cells.

  2. Electrochemical corrosion studies on copper-base waste package container materials in unirradiated 0.1 N NaNO{sub 3} at 95{degrees}C

    SciTech Connect (OSTI)

    Akkaya, M.; Verink, E.D. Jr. [Florida Univ., Gainesville, FL (USA); Van Konynenburg, R.A. [Lawrence Livermore National Lab., CA (USA)

    1988-05-01T23:59:59.000Z

    Three candidate materials were investigated in this study in terms of their electrochemical corrosion behavior in unirradiated 0.1 N NaNO{sub 3} solutions at 95{degrees}C. Anodic polarization experiments were conducted to determine the passive current densities, pitting potentials, and other parameters, together with Cyclic Current Reversal Voltammetry tests to evaluate the stability and protectiveness of the passive oxides formed. X-ray diffraction and Auger Electron Spectroscopy were used for identification of the corrosion products as well as Scanning Electron Microscopy for the surface morphology studies. 2 refs., 22 figs., 2 tabs.

  3. III Seminrio Tcnico-cientfico de anlise dos dados de desmatamento na Amaznia Legal So Jos dos Campos, 27 e 28 de junho de 2005

    E-Print Network [OSTI]

    25 X 25 km, com uma base construída a partir dos dados gerados pelo PRODES e DETER . Para isso foramIII Seminário Técnico-científico de análise dos dados de desmatamento na Amazônia Legal São José da dinâmica dos dados de desflorestamento para o período de 1997 a 2004, em células com resolução de

  4. ELEG620: Solar Electric Systems University of Delaware, ECE Spring 2008 C. Honsberg Solar Cell Operation

    E-Print Network [OSTI]

    Honsberg, Christiana

    is lost as heat. energy Eg 2 31 Absorption process #12;ELEG620: Solar Electric Systems UniversityELEG620: Solar Electric Systems University of Delaware, ECE Spring 2008 C. Honsberg Solar Cell and shunt resistance). #12;ELEG620: Solar Electric Systems University of Delaware, ECE Spring 2008 C

  5. Potential Presence of Endangered Wildlife Species at the University of Delaware Wind Power Project Site

    E-Print Network [OSTI]

    Firestone, Jeremy

    Potential Presence of Endangered Wildlife Species at the University of Delaware Wind Power Project wind power project site, we conducted an analysis of the suitability of habitat within the project of potential risk to the species. #12;Corn Snake ­ Fairly common in Delaware, but is not likely to be present

  6. Structure and temperature-dependent phase transitions of lead-free Bi[subscript 1/2]Na[subscript 1/2]TiO[subscript 3]?Bi[subscript 1/2]K[subscript 1/2]TiO[subscript 3]?K[subscript 0.5]Na[subscript 0.5]NbO[subscript 3] piezoceramics

    SciTech Connect (OSTI)

    Anton, Eva-Maria; Schmitt, Ljubomira Ana; Hinterstein, Manuel; Trodahl, Joe; Kowalski, Ben; Jo, Wook; Kleebe, Hans-Joachim; Rödel, Jürgen; Jones, Jacob L. (TU Darmstadt) [TU Darmstadt; (VUW); (Florida)

    2014-05-28T23:59:59.000Z

    Structure and phase transitions of (1-y)((1-x)Bi{sub 1/2}Na{sub 1/2}TiO{sub 3}-xBi{sub 1/2}K{sub 1/2}TiO{sub 3})-yK{sub 0.5}Na{sub 0.5}NbO{sub 3} (x; y) piezoceramics (0.1 {le} x {le} 0.4; 0 {le} y {le} 0.05) were investigated by transmission electron microscopy, neutron diffraction, temperature-dependent x-ray diffraction, and Raman spectroscopy. The local crystallographic structure at room temperature (RT) does not change by adding K{sub 0.5}Na{sub 0.5}NbO{sub 3} to Bi{sub 1/2}Na{sub 1/2}TiO{sub 3}-xBi{sub 1/2}K{sub 1/2}TiO{sub 3} for x = 0.2 and 0.4. The average crystal structure and microstructure on the other hand develop from mainly long-range polar order with ferroelectric domains to short-range order with polar nanoregions displaying a more pronounced relaxor character. The (0.1; 0) and (0.1; 0.02) compositions exhibit monoclinic Cc space group symmetry, which transform into Cc + P4bm at 185 and 130 C, respectively. This high temperature phase is stable at RT for the morphotropic phase boundary compositions of (0.1; 0.05) and all compositions with x = 0.2. For the compositions of (0.1; 0) and (0.1; 0.02), local structural changes on heating are evidenced by Raman; for all other compositions, changes in the long-range average crystal structure were observed.

  7. High thermal stability of piezoelectric properties in (Na{sub 0.5}Bi{sub 0.5}TiO{sub 3}){sub x}-(BaTiO{sub 3}){sub y}-(Na{sub 0.5}K{sub 0.5}NbO{sub 3}){sub 1-x-y} ceramics

    SciTech Connect (OSTI)

    Gupta, Shashaank; Priya, Shashank [Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Materials and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061 (United States)] [Bio-Inspired Materials and Devices Laboratory (BMDL), Center for Energy Harvesting Materials and Systems (CEHMS), Virginia Tech, Blacksburg, Virginia 24061 (United States)

    2013-01-07T23:59:59.000Z

    We report the piezoelectric and ferroelectric properties of (Na{sub 0.5}Bi{sub 0.5}TiO{sub 3}){sub x}-(BaTiO{sub 3}){sub y}-(Na{sub 0.5}K{sub 0.5}NbO{sub 3}){sub 1-x-y} ceramics for Na{sub 0.5}K{sub 0.5}NbO{sub 3} rich end of composition (x, y {<=} 0.04 mol. %). These compositions were found to exhibit significantly improved thermal stability of piezoresponse. Variation of dielectric constant as a function of temperature revealed that orthorhombic-tetragonal (T{sub o-t}) and tetragonal-cubic (T{sub c}) transition temperatures for these compositions were in the vicinity of 0 Degree-Sign C and 330 Degree-Sign C, respectively. Dynamic scaling and temperature dependent X-ray diffraction analysis were conducted. Results are discussed in terms of intrinsic and extrinsic contributions to the piezoelectric response explaining the temperature dependent behavior.

  8. Thermal conductivity of Na/sub 3/(U/sub 1-y/Pu/sub y/)O/sub 4/: A preliminary in-pile determination

    SciTech Connect (OSTI)

    Lee, M.J.; Lambert, J.D.B.; Ukai, S.; Odo, T.

    1987-01-01T23:59:59.000Z

    During Run-Beyond-Cladding-Breach (RBCB) operation in an oxide LMR, the performance of a breached fuel element is intimately associated with the formation of fuel-sodium reaction product (FSRP), Na/sub 3/(U/sub 1-y/Pu/sub y/)O/sub 4/. In-pile experiments coupled with destructive examinations of breached fuel have consistently revealed noticeable changes in fuel structure accompanying FSRP formation at the fuel surface. Previous analyses have also indicated a significant impact of FSRP on fuel centerline temperature. Successful modeling of breached fuel thermal behavior therefore requires a reasonably accurate knowledge of the thermal properties of the FSRP, especially its thermal conductivity. But laboratory investigations have been scarce and limited to the Na/UO/sub 2/ system because of the toxicity of plutonium and hygroscopicity of the FSRP. Hence, post-irradiation observations of fuel samples remain the most amenable way of deriving the thermal conductivity of the FSRP. Such work is a spin-off of the RBCB program in the Experimental Breeder Reactor-II (EBR-II), a program jointly sponsored by the US Department of Energy and the Power Reactor and Nuclear Fuel Development Corporation of Japan.

  9. Thermal conductivity of Na/sub 3/(U/sub 1-y/Pu/sub y/O/sub 4/: a preliminary in-pile determination

    SciTech Connect (OSTI)

    Lee, M.J.; Lambert, J.D.B.; Ukai, S.; Odo, T.

    1987-01-01T23:59:59.000Z

    During run-beyond-cladding-breach (RBCB) operation in an oxide liquid metal breeder, the performance of a breached fuel element is intimately associated with the formation of fuel/sodium reaction product (FSRP), Na/sub 3/(U/sub 1-y/Pu/sub y/)O/sub 4/. In-pile experiments coupled with destructive examinations of breached fuel have consistently revealed noticeable changes in fuel structure accompanying FSRP formation at the fuel surface. Previous analyses have also indicated a significant impact of FSRP on fuel centerline temperature. Successful modeling of breached fuel thermal behavior therefore requires a reasonably accurate knowledge of the thermal properties of the FSRP, especially its thermal conductivity. But laboratory investigations have been scarce and limited to the Na/UO/sub 2/ system because of the toxicity of plutonium and hygroscopicity of the FSRP. Hence, postirradiation observations of fuel samples remain the most amenable way of deriving the thermal conductivity of the FSRP. Such work is a spin-off of the RBCB program in the Experimental Breeder Reactor-II (EBR-II), a program jointly sponsored by the US Dept. of Energy and the Power Reactor and Nuclear Fuel Development Corporation of Japan.

  10. Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in the $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction

    E-Print Network [OSTI]

    Depalo, Rosanna; Ferraro, Federico; Slemer, Alessandra; Al-Abdullah, Tariq; Akhmadaliev, Shavkat; Anders, Michael; Bemmerer, Daniel; Elekes, Zoltán; Mattei, Giovanni; Reinicke, Stefan; Schmidt, Konrad; Scian, Carlo; Wagner, Louis

    2015-01-01T23:59:59.000Z

    The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominates the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the $^{22}$Ne(p,$\\gamma$)$^{23}$Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with $^{22}$Ne. The strengths $\\omega\\gamma$ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479 and 1279 keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479 and 1279 keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which i...

  11. Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in the $^{22}$Ne(p,$?$)$^{23}$Na reaction

    E-Print Network [OSTI]

    Rosanna Depalo; Francesca Cavanna; Federico Ferraro; Alessandra Slemer; Tariq Al-Abdullah; Shavkat Akhmadaliev; Michael Anders; Daniel Bemmerer; Zoltán Elekes; Giovanni Mattei; Stefan Reinicke; Konrad Schmidt; Carlo Scian; Louis Wagner

    2015-07-14T23:59:59.000Z

    The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominates the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the $^{22}$Ne(p,$\\gamma$)$^{23}$Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with $^{22}$Ne. The strengths $\\omega\\gamma$ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479 and 1279 keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479 and 1279 keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which is found to be less intense by one order of magnitude. In addition, improved branching ratios have been determined for the gamma decay of the resonances at 436, 479, and 639 keV.

  12. Effects of Al2O3, B2O3, Na2O, andSiO(2) on nepheline formation in borosilicate glasses: chemical and physical correlations

    SciTech Connect (OSTI)

    Li, Hong; Hrma, Pavel R.; Vienna, John D.; Qian, Maoxu; Su, Yali; Smith, Donald E.

    2003-12-01T23:59:59.000Z

    Raman spectroscopic technique was applied to study complex borosilicate glasses to elucidate Al2O3, B2O3, Na2O, and SiO2 effects on the network structure evolution with an emphasis on the nepheline formation tendency in the glasses. An origin of the observed Raman band near 850 cm-1 in the quenched glass samples was elucidated by studying the quenched and slowly cooled samples using a variety of spectroscopic methods. The results suggested that the characteristic Raman band near 850 cm-1 was closely related to the nepheline-like nanocrystals formed in the quenched glass samples. Composition models for both the characteristic Raman band intensity and liquidus were developed. The two models provide a consistent outcome that increase in B2O3 and SiO2 decreases the Raman band intensity, or nepheline formation tendency, and liquidus, whereas increase Al2O3 and Na2O increases the Raman band intensity, or nepheline formation tendency, and liquidus temperture.

  13. Cathodic hydrogen embrittlement of a 22% chromium 5% nickel duplex stainless steel in sulfide containing 3.5 wt% NaCl solution

    SciTech Connect (OSTI)

    Tsai, S.Y. [Industrial Technology Research Inst., Hsinchu (Taiwan, Province of China). Materials Research Labs.; Shih, H.C. [National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Materials Science and Engineering; Yen, K.P. [National Chung Hsing Univ., Taichung (Taiwan, Province of China). Inst. of Materials Engineering

    1996-08-01T23:59:59.000Z

    Hydrogen embrittlement (HE) of a 2,205 duplex stainless steel has been studied by slow straining of tensile specimens in sulfide containing 3.5 wt% NaCl solution. A more complex sulfide-concentration-dependent loss in ductility was discovered at controlled potentials in {minus}1,100 mV (SCE). It is believed that HE was controlled by the critical concentration of S as a promoter at lower sulfide levels and recovery of ductility at higher sulfide concentrations was attributed to the role of the sulfide as a cathodic inhibitor. No stress corrosion cracking (SCC) was observed at anodic polarization in this system. The electrochemical results indicate that the corrosion potentials of 2,205 duplex stainless steel in 3.5 wt% NaCl solution move to the less noble direction with increasing the sulfide concentration or with decreasing the solution acidity. This trend was not influenced by the presence of dissolved oxygen. Under severe HE environments transgranular cleavage is the favored path for cracking.

  14. A first-principles density functional theory study of the electronic structural and thermodynamic properties of M2ZrO3 and M2CO3 (M=Na, K) and their capabilities for CO2 capture

    SciTech Connect (OSTI)

    Yuhua Duan

    2012-01-01T23:59:59.000Z

    Alkali metal zirconates could be used as solid sorbents for CO{sub 2} capture. The structural, electronic, and phonon properties of Na{sub 2}ZrO{sub 3}, K{sub 2}ZrO{sub 3}, Na{sub 2}CO{sub 3}, and K{sub 2}CO{sub 3} are investigated by combining the density functional theory with lattice phonon dynamics. The thermodynamics of CO{sub 2} absorption/desorption reactions of these two zirconates are analyzed. The calculated results show that their optimized structures are in a good agreement with experimental measurements. The calculated band gaps are 4.339 eV (indirect), 3.641 eV (direct), 3.935 eV (indirect), and 3.697 eV (direct) for Na{sub 2}ZrO{sub 3}, K{sub 2}ZrO{sub 3}, Na{sub 2}CO{sub 3}, and K{sub 2}CO{sub 3}, respectively.The calculated phonon dispersions and phonon density of states for M{sub 2}ZrO{sub 3} and M{sub 2}CO{sub 3} (M = K, Na, Li) revealed that from K to Na to Li, their frequency peaks are shifted to high frequencies due to the molecular weight decreased from K to Li. From the calculated reaction heats and relationships of free energy change versus temperatures and CO{sub 2} pressures of the M{sub 2}ZrO{sub 3} (M = K, Na, Li) reacting with CO{sub 2}, we found that the performance of Na{sub 2}ZrO{sub 3} capturing CO{sub 2} is similar to that of Li{sub 2}ZrO{sub 3} and is better than that of K{sub 2}ZrO{sub 3}. Therefore, Na{sub 2}ZrO{sub 3} and Li{sub 2}ZrO{sub 3} are good candidates of high temperature CO{sub 2} sorbents and could be used for post combustion CO{sub 2} capture technologies.

  15. Structure and properties of Na{sub x}M{sub 2}SbO{sub 6}·yH{sub 2}O, M=Co(III), Ni(III) honeycomb oxyhydrates

    SciTech Connect (OSTI)

    Roudebush, J.H., E-mail: jhr@princeton.edu; Cava, R.J.

    2013-08-15T23:59:59.000Z

    The oxyhydrates Na{sub 0.85}Co{sub 2}SbO{sub 6}·1.7H{sub 2}O and Na{sub 0.95}Ni{sub 2}SbO{sub 6}·1.5H{sub 2}O were prepared by Br{sub 2} oxidation of Na{sub 3}Co{sub 2}SbO{sub 6} and Na{sub 3}Ni{sub 2}SbO{sub 6} and exposure to ambient air. Their composition and structure are characterized by thermogravimetric analysis, elemental analysis and powder X-ray diffraction. Both form monolayer hydrates with metal cations (Co or Ni) near the 3+ oxidation state. In the parent materials, MO{sub 6} octahedra surround SbO{sub 6} units, forming a honeycomb geometry; Rietveld refinement of the hydrate phases indicate that this motif is retained. Magnetic susceptibility plots display paramagnetic behavior and Curie–Weiss fits support the 3+ oxidation state (low spin d{sup 6}s=0 for Co and low spin d{sup 7}s=1/2 for Ni). Close inspection of the Ni hydrate’s susceptibility reveals a feature at 6.2 K and a non-linear magnetization at 2 K with no saturation up to 9 T. Heat capacity measurements show a large amount of excess entropy in the Ni hydrate in the 2–20 K temperature range, while the heat capacity of the Co hydrate can be described by a simple lattice contribution. The Ni hydrate sample is easily dehydrated by heating above 100 °C and forms a new Na-deficient phase, Na{sub 0.95}Ni{sub 2}SbO{sub 6}, which is stable at room temperature. Magnetic susceptibility of this phase is consistent with the Ni atom remaining in the 3+ oxidation state after dehydration. - Graphical abstract: Powder diffraction patterns of Na{sub 3}Ni{sub 2}SbO{sub 6}, Na{sub 0.95}Ni{sub 2}SbO{sub 6}·1.5H{sub 2}O and Na{sub 0.95}Ni{sub 2}SbO{sub 6}. Each pattern has been normalized in intensity. Cartoons depict the change in layer separation with hydration and give the approximate distances between layers and Ni atoms. Highlights: • New oxyhydrate phases with honeycomb lattices are formed. • Curie–Weiss fits indicate Ni{sup 3+} (s=1/2). • Heat capacity shows a large release of entropy for Ni phase, likely due to a complex magneto-structural phase transition.

  16. Delaware Natural Gas Vehicle Fuel Consumption (Million Cubic Feet)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,128 2,469Decade Year-0Cubic Feet)Delaware Natural Gas

  17. Delaware Price of Natural Gas Delivered to Residential Consumers (Dollars

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,128 2,469Decade Year-0Cubic Feet)Delaware Natural7,541per

  18. Delaware Power Systems Corp DPS | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A Potential Microhydro SiteDayton Power & Light CoDelaware Power Systems

  19. University of Delaware Energy Institute Inauguration | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2, 2015 -Helicopter-Japan Joint Nuclear EnergyRodUniversity of Delaware

  20. Delaware County Elec Coop Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnicNewDeafDeerDel Aire,Delafield,Delaware

  1. Delaware Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurTheBrookhaven NationalRegionals »AwakeBrookhavenColoradoDOEDecemberDelaware

  2. Town of Middletown, Delaware (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlin Baxin Hydropower Station JumpOpenEITownTown of Middletown, Delaware

  3. Consolidated Edison Sol Inc (Delaware) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew| OpenCongress,Consolidated Edison Sol Inc (Delaware)

  4. Delaware - Rankings - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTownDells,1 U.S. Department ofU.S. OffshorePENNELProduct: Crude5,350272/S1Delaware

  5. Neutron diffraction study at 37 K of sodium triaqua(ethylenediaminetetraacetato)samarate(III) pentahydrate, Na[Sm(C10H12N2O8)(H2O)3].5H2O

    E-Print Network [OSTI]

    Engel, D. W.; Takusagawa, Fusao; Koetzle, T. F.

    1984-01-01T23:59:59.000Z

    at 37 K of Sodium Triaqua(ethylenediamine- tetraacetato)samarate(III) Pentahydrate, Na[Sm(C10H12N2O8)(H2O)3].5H2O* BY DENNIS W . ENGEL*|* Physics Department, University of Durban- Westville, Private Bag X54001, Durban 4000, South Africa AND FUSAO... by © 1984 International Union of Crystallography 1688 Na[Sm(C10H12N2O8)(H2O)3].5H2O Hoard, Lee & Lind (1965) and Lee (1967). The authors reported the structures of KLa/1.8H20 and NaTM.8H20 by X-ray diffraction. A further X-ray determination...

  6. Crystal structure and magnetic properties of NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl

    SciTech Connect (OSTI)

    Jin Tengteng [Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Rd. 1295, Shanghai 200050 (China); Liu Wei [Institute of Science and Engineering of Materials, Ocean University of China, Qingdao (China); Chen Shuang; Prots, Yurii; Schnelle, Walter [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); Zhao Jingtai [Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Rd. 1295, Shanghai 200050 (China); Kniep, Ruediger [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); Hoffmann, Stefan, E-mail: stefan.hoffmann@cpfs.mpg.de [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany)

    2012-08-15T23:59:59.000Z

    A new copper(II) oxide phosphate chloride, NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl], has been synthesized by flux synthesis. Single-crystal X-ray diffraction data show that the title compound crystallizes in the monoclinic system, space group P2{sub 1}/c (No. 14), with lattice parameters a=8.392(2) A, b=6.3960(10) A, c=16.670(2) A, {beta}=109.470(10) Degree-Sign , V=843.6(3) A{sup 3}, Z=4. The crystal structure is characterized by a complex chain of copper-centered polyhedra running along [0 1 0] which are connected by phosphate tetrahedra. The resulting three-dimensional polyhedra framework exhibits channels filled by additional copper and sodium atoms. Field and temperature dependent measurements of the specific heat and the magnetic susceptibility reveal low-dimensional magnetic behavior. The compound starts to decompose at 700 K under release of oxygen and evaporation of Cu{sup I}Cl as shown by simultaneous thermogravimetry and mass spectrometry. - Graphical abstract: The crystal structure of the new copper(II) phosphate chloride, NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl], exhibits linear chains of copper tetrahedra which show low-dimensional magnetic behavior proven by specific heat and magnetic susceptibility measurements. Highlights: Black-Right-Pointing-Pointer A new copper(II) oxide phosphate chloride, NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl], has been synthesized by flux synthesis. Black-Right-Pointing-Pointer The crystal structure comprises chains of Cu{sub 4}O tetrahedra. Black-Right-Pointing-Pointer Low-dimensional behavior has been proven by magnetic and specific heat measurements. Black-Right-Pointing-Pointer On heating, Cu{sup I}Cl and oxygen are released shown by simultaneous thermogravimetry and mass spectrometry.

  7. Fluorine sites in glasses and transparent glass-ceramics of the system Na{sub 2}O/K{sub 2}O/Al{sub 2}O{sub 3}/SiO{sub 2}/BaF{sub 2}

    SciTech Connect (OSTI)

    Bocker, Christian, E-mail: christian.bocker@uni-jena.d [Otto-Schott-Institut, Jena University, Fraunhoferstr. 6, 07743 Jena (Germany); Munoz, Francisco; Duran, Alicia [Instituto de Ceramica y Vidrio (CSIC), Kelsen 5, 28049 Madrid (Spain); Ruessel, Christian [Otto-Schott-Institut, Jena University, Fraunhoferstr. 6, 07743 Jena (Germany)

    2011-02-15T23:59:59.000Z

    The transparent glass-ceramics obtained in the silicate system Na{sub 2}O/K{sub 2}O/SiO{sub 2}/BaF{sub 2} show homogeneously dispersed BaF{sub 2} nano crystals with a narrow size distribution. The X-ray diffraction and the nuclear magnetic resonance spectroscopy were applied to glasses and the respective glass-ceramics in order to clarify the crystallization mechanism and the role of fluorine during crystallization. With an increasing annealing time, the concentration and also the number of crystals remain approximately constant. With an increasing annealing temperature, the crystalline fraction increases until a saturation limit is reached, while the number of crystals decreases and the size of the crystals increases. Fluoride in the glassy network occurs as Al-F-Ba, Al-F-Na and also as Ba-F structures. The latter are transformed into crystalline BaF{sub 2} and fluoride is removed from the Al-F-Ba/Na bonds. However, some fluorine is still present in the glassy phase after the crystallization. -- Graphical abstract: The X-ray diffraction and the nuclear magnetic resonance spectroscopy were applied to glasses in the silicate system Na{sub 2}O/K{sub 2}O/SiO{sub 2}/BaF{sub 2} and the respective glass-ceramics with BaF{sub 2} nano crystals in order to clarify the crystallization mechanism and the role of fluorine during crystallization. Display Omitted Research highlights: {yields} BaF{sub 2} nano crystals are precipitated from a silicate glass system. {yields} Ostwald ripening during the late stage of crystallization does not occur. {yields} Fluorine in the glass is coordinated with Ba as well as Al together with Ba or Na.{yields} In the glass-ceramics, the residual fluorine is coordinated as Al-F-Ba/Na.

  8. Light scattering from ,,K0.5Na0.5...0.2,,Sr0.75Ba0.25...0.9Nb2O6 with the tungsten bronze structure: An analogy with relaxor ferroelectrics

    E-Print Network [OSTI]

    Light scattering from ,,K0.5Na0.5...0.2,,Sr0.75Ba0.25...0.9Nb2O6 with the tungsten bronze structure a complex single crystal from the tungsten­bronze family, K0.5Na0.5 0.2 Sr0.75Ba0.25 0.9Nb2O6 doped with Cu2 photorefractive material.1 KNSBN originates from the tungsten­bronze family of ferroelectrics. KNSBN has two close

  9. {sup 25}Na and {sup 25}Mg fragmentation on {sup 12}C at 9.23 MeV per nucleon at TRIUMF

    SciTech Connect (OSTI)

    St-Onge, Patrick; Boisjoli, Mark; Fregeau, Marc-Olivier; Gauthier, Jerome; Wallace, Barton; Roy, Rene [Departement de physique, de genie physique et d'optique, Universite Laval, Quebec, G1V 0A6 (Canada)

    2012-10-20T23:59:59.000Z

    HERACLES is a multidetector that is used to study heavy-ion collisions, with ion beams with an energy range between 8 to 15 MeV per nucleon. It has 78 detectors axially distributed around the beam axis in 6 rings allowing detection of multiple charged fragments from nuclear reactions. HERACLES has 4 different types of detectors, BC408/BaF{sub 2} phoswich, Si/CsI(Tl) telescope, BC408/BC444 phoswich and CsI(Tl) detectors. The multidetector has been run with a radioactive {sup 25}Na beam and a stable {sup 25}Mg beam at 9.23 MeV per nucleon on a carbon target.

  10. Jupiter as an exoplanet: UV to NIR transmission spectrum reveals hazes, a Na layer and possibly stratospheric H2O-ice clouds

    E-Print Network [OSTI]

    Montañes-Rodriguez, P; Palle, E; Lopez-Puertas, M; Garcia-Melendo, E

    2015-01-01T23:59:59.000Z

    Currently, the analysis of transmission spectra is the most successful technique to probe the chemical composition of exoplanet atmospheres. But the accuracy of these measurements is constrained by observational limitations and the diversity of possible atmospheric compositions. Here we show the UV-VIS-IR transmission spectrum of Jupiter, as if it were a transiting exoplanet, obtained by observing one of its satellites, Ganymede, while passing through Jupiter's shadow i.e., during a solar eclipse from Ganymede. The spectrum shows strong extinction due to the presence of clouds (aerosols) and haze in the atmosphere, and strong absorption features from CH4. More interestingly, the comparison with radiative transfer models reveals a spectral signature, which we attribute here to a Jupiter stratospheric layer of crystalline H2O ice. The atomic transitions of Na are also present. These results are relevant for the modeling and interpretation of giant transiting exoplanets. They also open a new technique to explore...

  11. Lithographic measurement of EUV flare in the 0.3-NA Micro ExposureTool optic at the Advanced Light Source

    SciTech Connect (OSTI)

    Cain, Jason P.; Naulleau, Patrick; Spanos, Costas J.

    2005-01-01T23:59:59.000Z

    The level of flare present in a 0.3-NA EUV optic (the MET optic) at the Advanced Light Source at Lawrence Berkeley National Laboratory is measured using a lithographic method. Photoresist behavior at high exposure doses makes analysis difficult. Flare measurement analysis under scanning electron microscopy (SEM) and optical microscopy is compared, and optical microscopy is found to be a more reliable technique. In addition, the measured results are compared with predictions based on surface roughness measurement of the MET optical elements. When the fields in the exposure matrix are spaced far enough apart to avoid influence from surrounding fields and the data is corrected for imperfect mask contrast and aerial image proximity effects, the results match predicted values quite well. The amount of flare present in this optic ranges from 4.7% for 2 {micro}m features to 6.8% for 500 nm features.

  12. A reinvestigation of the electrochemical behavior of Nb(V) in AlCl[sub 3]-NaCl[sub SAT] and related melts

    SciTech Connect (OSTI)

    Sienerth, K.D. (Virginia Military Inst., Lexington, VA (United States). Dept. of Chemistry); Hondrogiannis, E.M.; Mamantov, G. (Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry)

    1994-07-01T23:59:59.000Z

    The electrochemistry and spectroelectrochemistry of Nb(V) in molten sodium chloroaluminate saturated with NaCl at 178 C were re-examined. It was determined that previous studies involved solutions of high oxide content. The reduction of NbCl[sub 5] in oxide-free melts was found to proceed via four steps at short times and low concentrations. At higher concentrations and long times, the reduction sequence was complicated by a chemical reaction which followed the initial reduction step. The effect of temperature on the electrochemistry of Nb(V) in sodium chloroaluminate and fluorochloraluminates was examined; temperature had a marked effect on the behavior of Nb(V) in these melts, but no significant differences were observed between melts with and those without fluoride. Attempts to produce electrolytically niobium metal from Nb(V) in these metals met with limited success.

  13. An experimental investigation of the solubility and complexing of nickel in the system NiO-HCl-H?O-NaCl

    E-Print Network [OSTI]

    Fahlquist, Lynne Shirley

    1987-01-01T23:59:59.000Z

    . 992 1. 120 1. 816 2. 099 3. 678 3. 415 4. 498 4. 650 5. 943 5. 959 log 'N'ex -1. 74 -1. 68 -1. 41 -1. 38 -1. 24 -1. 25 -1. 03 -1. 03 -1, 00 -0. 84 log aNaC1' -0. 19 -0. 01 0. 15 0. 22 0. 46 0. 48 0. 65 0. 67 0. 82 0. 82... region for the system 700 C 800 C 500 C 12 AIO+2HCI' ~ MCI a+HzO P Iitber 0 4 Ol O iNrt Ni 0 1. 0 1. 2 10 /T(K) 1. 4 Figure 1. Plot of log K versus 1000fI' for dissolution of oxides. Data are taken from Frantz et al. (1981), Boctor...

  14. Precision measurement of the 3 s sub 1/2 -3 p sub 3/2 transition energy in Na-like platinum ions

    SciTech Connect (OSTI)

    Cowan, T.E.; Bennett, C.L.; Dietrich, D.D.; Bixler, J.V.; Hailey, C.J.; Henderson, J.R.; Knapp, D.A.; Levine, M.A.; Marrs, R.E.; Schneider, M.B. (University of California, Lawrence Livermore National Laboratory, P. O. Box 808, Livermore, California 94550 (US))

    1991-03-04T23:59:59.000Z

    We report a measurement of the 3{ital s}{sub 1/2-}3{ital p}{sub 3/2} transition energy in Na-like {sub 78}Pt{sup 67+} ions of 653.44{plus minus}0.02(stat) {plus minus}0.05(syst) eV. The x rays were observed from ions in an electron-beam ion trap. The uncertainty in our result corresponds to 1% of the total estimated quantum electrodynamic radiative contribution to this transition energy. This value differs significantly from extrapolations based on previous lower-{ital Z} data, and establishes a benchmark for calculations of high-{ital Z} multielectron radiative and relativistic effects.

  15. Cost-Effectiveness of ASHRAE Standard 90.1-2010 for the State of Delaware

    SciTech Connect (OSTI)

    Hart, Philip R.; Rosenberg, Michael I.; Xie, YuLong; Zhang, Jian; Richman, Eric E.; Elliott, Douglas B.; Loper, Susan A.; Myer, Michael

    2013-11-01T23:59:59.000Z

    Moving to the ANSI/ASHRAE/IES Standard 90.1-2010 version from the Base Code (90.1-2007) is cost-effective for all building types and climate zones in the State of Delaware.

  16. Delaware's Energy Efficiency Potential and Program Scenarios to Meet Its Energy Efficiency Resource Standard

    E-Print Network [OSTI]

    Delaware, University of

    , state, federal and international agencies and nonprofit organizations. The Center is composed and development, environmental justice, conservation and renewable energy options, integrated resource planningDelaware's Energy Efficiency Potential and Program Scenarios to Meet Its Energy Efficiency Resource

  17. UNDERLYING MOTIVATIONS FOR DELAWARE PUBLIC PARTICIPATION IN SUPPORT OF OFFSHORE WIND

    E-Print Network [OSTI]

    Firestone, Jeremy

    UNDERLYING MOTIVATIONS FOR DELAWARE PUBLIC PARTICIPATION IN SUPPORT OF OFFSHORE WIND: IMPLICATIONS PARTICIPATION IN SUPPORT OF OFFSHORE WIND: IMPLICATIONS FOR STATE ENERGY POLICY by Jacqueline D Piero Approved ................................................................................................. 3 Offshore wind: a new option in the United States.............................................. 4

  18. The action mechanism of TiO{sub 2}:NaYF{sub 4}:Yb{sup 3+},Tm{sup 3+} cathode buffer layer in highly efficient inverted organic solar cells

    SciTech Connect (OSTI)

    Liu, Chunyu; Chen, Huan; Zhao, Dan; Shen, Liang; He, Yeyuan; Guo, Wenbin, E-mail: guowb@jlu.edu.cn, E-mail: chenwy@jlu.edu.cn [State Key Laboratory on Integrated Optoelectronics, Jilin University, 2699 Qianjin Street, Changchun 130012 (China); Chen, Weiyou, E-mail: guowb@jlu.edu.cn, E-mail: chenwy@jlu.edu.cn [College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (China)

    2014-08-04T23:59:59.000Z

    We report the fabrication and characteristics of organic solar cells with 6.86% power conversion efficiency (PCE) by doping NaYF{sub 4}:Yb{sup 3+},Tm{sup 3+} into TiO{sub 2} cathode buffer layer. The dependence of devices performance on doping concentration of NaYF{sub 4}:Yb{sup 3+},Tm{sup 3+} is investigated. Results indicate that short-circuit current density (J{sub sc}) has an apparent improvement, leading to an enhancement of 22.7% in PCE for the optimized doping concentration of 0.05?mmol ml{sup ?1} compared to the control devices. NaYF{sub 4}:Yb{sup 3+},Tm{sup 3+} nanoparticles (NPs) can play threefold roles, one is that the incident light in visible region can be scattered by NaYF{sub 4} NPs, the second is that solar irradiation in infrared region can be better utilized by Up-conversion effect of Yb{sup 3+} and Tm{sup 3+} ions, the third is that electron transport property in TiO{sub 2} thin film can be greatly improved.

  19. Ablation by short optical and X-ray laser pulses N.A. Inogamova, S.I. Anisimova, V.V. Zhakhovskyb,c, A.Ya. Faenovb,d, Yu.V. Petrova,

    E-Print Network [OSTI]

    Fominov, Yakov

    Ablation by short optical and X-ray laser pulses N.A. Inogamova, S.I. Anisimova, V.V. Zhakhovskyb. Keywords: Short pulse laser ablation, EUV and X-ray laser ablation of LiF, material strength defined in laser experiment 1. INTRODUCTION Short pulse OL and XRL are important for practical applications

  20. Influence of La substitution on ferromagnetic properties of lead free Na{sub 0.5}Bi{sub 0.5}Ti{sub 0.988}Fe{sub 0.012}O{sub 3} multiferroic system

    SciTech Connect (OSTI)

    Parmar, Kusum, E-mail: prmrkusum@gamil.com; Sharma, Anshu, E-mail: prmrkusum@gamil.com; Negi, N. S. [Department of Physics, Himachal Pradesh University, Shimla -171005 (India); Kotnala, R. K. [National Physical Laboratory, New Delhi -110012 (India)

    2014-04-24T23:59:59.000Z

    To study the effect of La doping and processing temperature, (Na{sub 0.5}Bi{sub 0.5}){sub 1?x}La{sub x}Ti{sub 0.988}Fe{sub 0.012}O{sub 3} (NBLTF) samples have been prepared by sol-gel method by employing two approaches namely with and without mol% excess of Na and Bi. X-ray diffraction analysis confirms the formation of rhombohedral perovskite structure in these samples with minor impurity phases. However, the impurity phases of stochiometric NBLTF samples disappear on increasing the sintering temperature from 650°C to 850°C. On other hand, NBLTF samples prepared with mol% excess of Na and Bi have shown pure perovskite structure only at lower sintering temperature 650°C and also at low concentration of La ? 1%. Transmission electron microscope investigation shows nano crystalline formation for all NBLTF samples sintered at 850°C. The enhancement in room temperature ferromagnetism is observed in La doped NBTF samples prepared at 850°C by taking stoichiometric amount of Na and Bi during synthesis.